diff --git a/include/z64actor.h b/include/z64actor.h
index 6790bc2224..19bf3b8706 100644
--- a/include/z64actor.h
+++ b/include/z64actor.h
@@ -289,7 +289,7 @@ typedef enum {
 } ActorType;
 
 #define ACTORCTX_FLAG_0 (1 << 0)
-#define ACTORCTX_FLAG_1 (1 << 1)
+#define ACTORCTX_FLAG_TELESCOPE_ON (1 << 1)
 #define ACTORCTX_FLAG_PICTO_BOX_ON (1 << 2)
 #define ACTORCTX_FLAG_3 (1 << 3)
 #define ACTORCTX_FLAG_4 (1 << 4)
diff --git a/include/z64environment.h b/include/z64environment.h
index 0988355f4d..45f8463f05 100644
--- a/include/z64environment.h
+++ b/include/z64environment.h
@@ -63,7 +63,7 @@ typedef enum {
 
 typedef enum {
     /* 0 */ WEATHER_MODE_CLEAR,
-    /* 1 */ WEATHER_MODE_1, // rain?
+    /* 1 */ WEATHER_MODE_RAIN,
     /* 2 */ WEATHER_MODE_2,
     /* 3 */ WEATHER_MODE_SNOW
 } WeatherMode;
@@ -81,6 +81,38 @@ typedef enum {
     /* 11 */ SKYBOX_DMA_TEXTURE2_START = 11
 } SkyboxDmaState;
 
+typedef enum SkyboxConfig {
+    /* 0x00 */ SKYBOX_CONFIG_0,
+    /* 0x01 */ SKYBOX_CONFIG_1,
+    /* 0x02 */ SKYBOX_CONFIG_2,
+    /* 0x03 */ SKYBOX_CONFIG_3,
+    /* 0x04 */ SKYBOX_CONFIG_4,
+    /* 0x05 */ SKYBOX_CONFIG_5,
+    /* 0x06 */ SKYBOX_CONFIG_6,
+    /* 0x07 */ SKYBOX_CONFIG_7,
+    /* 0x08 */ SKYBOX_CONFIG_8,
+    /* 0x09 */ SKYBOX_CONFIG_9,
+    /* 0x0A */ SKYBOX_CONFIG_10,
+    /* 0x0B */ SKYBOX_CONFIG_11,
+    /* 0x0C */ SKYBOX_CONFIG_12,
+    /* 0x0D */ SKYBOX_CONFIG_13,
+    /* 0x0E */ SKYBOX_CONFIG_14,
+    /* 0x0F */ SKYBOX_CONFIG_15,
+    /* 0x10 */ SKYBOX_CONFIG_16,
+    /* 0x11 */ SKYBOX_CONFIG_17,
+    /* 0x12 */ SKYBOX_CONFIG_18,
+    /* 0x13 */ SKYBOX_CONFIG_19,
+    /* 0x14 */ SKYBOX_CONFIG_20,
+    /* 0x15 */ SKYBOX_CONFIG_21,
+    /* 0x16 */ SKYBOX_CONFIG_22,
+    /* 0x17 */ SKYBOX_CONFIG_23,
+    /* 0x18 */ SKYBOX_CONFIG_24,
+    /* 0x19 */ SKYBOX_CONFIG_25,
+    /* 0x1A */ SKYBOX_CONFIG_26,
+    /* 0x1B */ SKYBOX_CONFIG_27,
+    /* 0x1C */ SKYBOX_CONFIG_MAX
+} SkyboxConfig;
+
 //! @TODO: Verify from OoT (may not be the same)
 typedef enum {
     /* 0 */ PRECIP_RAIN_MAX, // max number of raindrops that can draw; uses this or SOS_MAX, whichever is larger
@@ -145,15 +177,6 @@ typedef struct LightningStrike {
     /* 0x08 */ f32 delayTimer;
 } LightningStrike; // size = 0xC
 
-typedef struct {
-    /* 0x0 */ u16 startTime;
-    /* 0x2 */ u16 endTime;
-    /* 0x4 */ u8 skybox1Index;
-    /* 0x5 */ u8 skybox2Index;
-    /* 0x6 */ u8 color1Index;
-    /* 0x7 */ u8 color2Index;
-} TimeBasedSkyboxEntry; // size = 0x8
-
 #define ENV_FOGNEAR_MAX 996
 #define ENV_ZFAR_MAX 15000
 
@@ -298,7 +321,7 @@ void Environment_LerpSandstormColors(Color_RGBA8* colorSrc, Color_RGBA8* colorDs
 u8 func_800FE9B4(struct PlayState* play);
 void func_800FEA50(struct PlayState* play);
 void func_800FEAB0(void);
-void func_800FEAF4(EnvironmentContext* envCtx);
+void Environment_NewDay(EnvironmentContext* envCtx);
 
 // Data
 extern u8 gWeatherMode;
diff --git a/include/z64save.h b/include/z64save.h
index 67449a1781..c063fbd370 100644
--- a/include/z64save.h
+++ b/include/z64save.h
@@ -451,11 +451,12 @@ typedef enum {
 #define LINK_AGE_IN_YEARS (!LINK_IS_ADULT ? YEARS_CHILD : YEARS_ADULT)
 
 #define CURRENT_DAY (((void)0, gSaveContext.save.day) % 5)
+#define CURRENT_TIME ((void)0, gSaveContext.save.time)
 
 // The day begins at CLOCK_TIME(6, 0) so it must be offset.
 #define TIME_UNTIL_MOON_CRASH \
-    ((4 - CURRENT_DAY) * DAY_LENGTH - (u16)(((void)0, gSaveContext.save.time) - CLOCK_TIME(6, 0)))
-#define TIME_UNTIL_NEW_DAY (DAY_LENGTH - (u16)(((void)0, gSaveContext.save.time) - CLOCK_TIME(6, 0)))
+    ((4 - CURRENT_DAY) * DAY_LENGTH - (u16)(CURRENT_TIME - CLOCK_TIME(6, 0)))
+#define TIME_UNTIL_NEW_DAY (DAY_LENGTH - (u16)(CURRENT_TIME - CLOCK_TIME(6, 0)))
 
 #define GET_PLAYER_FORM ((void)0, gSaveContext.save.playerForm)
 
@@ -1581,7 +1582,7 @@ typedef enum {
 #define EVENTINF_47 0x47
 #define EVENTINF_50 0x50
 #define EVENTINF_51 0x51
-#define EVENTINF_52 0x52
+#define EVENTINF_HAS_DAYTIME_TRANSITION_CS 0x52
 #define EVENTINF_53 0x53
 #define EVENTINF_54 0x54
 #define EVENTINF_55 0x55
diff --git a/src/code/z_demo.c b/src/code/z_demo.c
index 26221708c6..0ef8fed953 100644
--- a/src/code/z_demo.c
+++ b/src/code/z_demo.c
@@ -176,8 +176,8 @@ void CutsceneCmd_Misc(PlayState* play, CutsceneContext* csCtx, CsCmdMisc* cmd) {
         case CS_MISC_CLOUDY_SKY:
             if (isFirstFrame) {
                 play->envCtx.changeSkyboxState = CHANGE_SKYBOX_REQUESTED;
-                play->envCtx.skyboxConfig = 1;
-                play->envCtx.changeSkyboxNextConfig = 0;
+                play->envCtx.skyboxConfig = SKYBOX_CONFIG_1;
+                play->envCtx.changeSkyboxNextConfig = SKYBOX_CONFIG_0;
                 play->envCtx.changeSkyboxTimer = 60;
                 play->envCtx.changeLightEnabled = true;
                 play->envCtx.lightConfig = 0;
@@ -331,7 +331,7 @@ void CutsceneCmd_Misc(PlayState* play, CutsceneContext* csCtx, CsCmdMisc* cmd) {
 
         case CS_MISC_MOON_CRASH_SKYBOX:
             if (isFirstFrame) {
-                play->envCtx.skyboxConfig = 0xD;
+                play->envCtx.skyboxConfig = SKYBOX_CONFIG_13;
             }
             break;
 
diff --git a/src/code/z_kaleido_setup.c b/src/code/z_kaleido_setup.c
index 32a8d5d748..3b1ff5cfca 100644
--- a/src/code/z_kaleido_setup.c
+++ b/src/code/z_kaleido_setup.c
@@ -97,7 +97,7 @@ void KaleidoSetup_Update(PlayState* play) {
                     if ((play->unk_1887C < 2) && (gSaveContext.magicState != MAGIC_STATE_STEP_CAPACITY) &&
                         (gSaveContext.magicState != MAGIC_STATE_FILL)) {
                         if (!CHECK_EVENTINF(EVENTINF_17) && !(player->stateFlags1 & PLAYER_STATE1_20)) {
-                            if (!(play->actorCtx.flags & ACTORCTX_FLAG_1) &&
+                            if (!(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) &&
                                 !(play->actorCtx.flags & ACTORCTX_FLAG_PICTO_BOX_ON)) {
                                 if (!play->actorCtx.isOverrideInputOn &&
                                     CHECK_BTN_ALL(input->press.button, BTN_START)) {
diff --git a/src/code/z_kankyo.c b/src/code/z_kankyo.c
index 933d9f3b74..84acb9c646 100644
--- a/src/code/z_kankyo.c
+++ b/src/code/z_kankyo.c
@@ -23,7 +23,7 @@ typedef struct {
 struct LightningStrike;
 
 u8 D_801F4E30;
-u8 D_801F4E31;
+u8 sInitSkyboxConfig;
 u8 gCustomLensFlare1On;
 Vec3f gCustomLensFlare1Pos;
 f32 D_801F4E44;
@@ -156,7 +156,17 @@ TimeBasedLightEntry sTimeBasedLightConfigs[][7] = {
     },
 };
 
-TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
+typedef struct {
+    /* 0x0 */ u16 startTime;
+    /* 0x2 */ u16 endTime;
+    /* 0x4 */ u8 skybox1Index;
+    /* 0x5 */ u8 skybox2Index;
+    /* 0x6 */ u8 color1Index;
+    /* 0x7 */ u8 color2Index;
+} TimeBasedSkyboxEntry; // size = 0x8
+
+TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[SKYBOX_CONFIG_MAX][9] = {
+    // SKYBOX_CONFIG_0
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 3, 3 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 3, 4 },
@@ -168,6 +178,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 2, 3 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 3, 3 },
     },
+    // SKYBOX_CONFIG_1
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 7, 7 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 7, 8 },
@@ -179,6 +190,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 6, 7 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 7, 7 },
     },
+    // SKYBOX_CONFIG_2
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 11, 11 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 11, 52 },
@@ -190,6 +202,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 10, 11 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 11, 11 },
     },
+    // SKYBOX_CONFIG_3
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 15, 15 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 15, 16 },
@@ -201,6 +214,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 14, 15 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 15, 15 },
     },
+    // SKYBOX_CONFIG_4
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 19, 19 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 19, 20 },
@@ -212,6 +226,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 0, 18, 19 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 19, 19 },
     },
+    // SKYBOX_CONFIG_5
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 23, 23 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 23, 52 },
@@ -223,6 +238,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 22, 23 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 23, 23 },
     },
+    // SKYBOX_CONFIG_6
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 27, 27 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 27, 28 },
@@ -234,6 +250,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 26, 27 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 27, 27 },
     },
+    // SKYBOX_CONFIG_7
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 31, 31 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 31, 32 },
@@ -245,6 +262,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 0, 30, 31 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 31, 31 },
     },
+    // SKYBOX_CONFIG_8
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 35, 35 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 35, 52 },
@@ -256,6 +274,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 34, 35 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 35, 35 },
     },
+    // SKYBOX_CONFIG_9
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 39, 39 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 39, 40 },
@@ -267,6 +286,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 38, 39 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 39, 39 },
     },
+    // SKYBOX_CONFIG_10
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 43, 43 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 43, 44 },
@@ -278,6 +298,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 0, 42, 43 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 43, 43 },
     },
+    // SKYBOX_CONFIG_11
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 47, 47 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 47, 52 },
@@ -289,6 +310,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 46, 47 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 47, 47 },
     },
+    // SKYBOX_CONFIG_12
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 51, 51 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 51, 48 },
@@ -300,6 +322,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 50, 51 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 51, 51 },
     },
+    // SKYBOX_CONFIG_13
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 55, 55 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 55, 52 },
@@ -311,6 +334,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 54, 54 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 55, 55 },
     },
+    // SKYBOX_CONFIG_14
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 59, 59 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 59, 56 },
@@ -322,6 +346,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 58, 58 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 59, 59 },
     },
+    // SKYBOX_CONFIG_15
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 63, 63 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 63, 60 },
@@ -333,6 +358,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 62, 62 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 63, 63 },
     },
+    // SKYBOX_CONFIG_16
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 67, 67 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 67, 64 },
@@ -344,6 +370,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 66, 66 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 67, 67 },
     },
+    // SKYBOX_CONFIG_17
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 1, 1 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 0, 1, 1 },
@@ -355,6 +382,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 1, 1 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 1, 1 },
     },
+    // SKYBOX_CONFIG_18
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 71, 71 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 71, 72 },
@@ -366,6 +394,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 70, 71 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 71, 71 },
     },
+    // SKYBOX_CONFIG_19
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 75, 75 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 75, 76 },
@@ -377,6 +406,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 74, 75 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 75, 75 },
     },
+    // SKYBOX_CONFIG_20
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 79, 79 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 79, 52 },
@@ -388,6 +418,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 78, 79 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 79, 79 },
     },
+    // SKYBOX_CONFIG_21
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 83, 83 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 83, 84 },
@@ -399,6 +430,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 82, 83 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 83, 83 },
     },
+    // SKYBOX_CONFIG_22
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 87, 87 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 87, 88 },
@@ -410,6 +442,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 86, 87 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 87, 87 },
     },
+    // SKYBOX_CONFIG_23
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 91, 91 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 91, 52 },
@@ -421,6 +454,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 90, 91 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 91, 91 },
     },
+    // SKYBOX_CONFIG_24
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 11, 11 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 0, 11, 11 },
@@ -432,6 +466,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 11, 11 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 11, 11 },
     },
+    // SKYBOX_CONFIG_25
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 95, 95 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 95, 96 },
@@ -443,6 +478,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 0, 0, 94, 95 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 0, 0, 95, 95 },
     },
+    // SKYBOX_CONFIG_26
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 1, 1, 99, 99 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 1, 1, 99, 100 },
@@ -454,6 +490,7 @@ TimeBasedSkyboxEntry sTimeBasedSkyboxConfigs[][9] = {
         { CLOCK_TIME(18, 0), CLOCK_TIME(19, 0), 1, 1, 98, 99 },
         { CLOCK_TIME(19, 0), CLOCK_TIME(24, 0) - 1, 1, 1, 99, 99 },
     },
+    // SKYBOX_CONFIG_27
     {
         { CLOCK_TIME(0, 0), CLOCK_TIME(4, 0), 0, 0, 103, 103 },
         { CLOCK_TIME(4, 0), CLOCK_TIME(5, 0), 0, 1, 103, 52 },
@@ -528,7 +565,7 @@ s32 Environment_ZBufValToFixedPoint(s32 zBufferVal) {
 void Environment_Init(PlayState* play2, EnvironmentContext* envCtx, s32 arg2) {
     PlayState* play = play2;
     f32 temp_ft4;
-    u8 var_a0;
+    u8 dayOffset;
     s16 i;
 
     CREG(1) = 0;
@@ -664,46 +701,46 @@ void Environment_Init(PlayState* play2, EnvironmentContext* envCtx, s32 arg2) {
     play->envCtx.precipitation[PRECIP_SNOW_MAX] = 0;
     play->envCtx.precipitation[PRECIP_SOS_MAX] = 0;
 
-    D_801F4E31 = envCtx->skyboxConfig;
+    sInitSkyboxConfig = envCtx->skyboxConfig;
 
-    var_a0 = 0;
+    dayOffset = 0;
     if (((void)0, gSaveContext.save.day) != 0) {
-        var_a0 = ((void)0, gSaveContext.save.day) - 1;
+        dayOffset = ((void)0, gSaveContext.save.day) - 1;
     }
-    envCtx->skyboxConfig = var_a0 + (D_801F4E31 * 3);
+    envCtx->skyboxConfig = dayOffset + (sInitSkyboxConfig * 3);
     envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
 
-    if (D_801F4E31 == 4) {
-        envCtx->skyboxConfig = 0xE;
+    if (sInitSkyboxConfig == SKYBOX_CONFIG_4) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_14;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 5) {
-        envCtx->skyboxConfig = 0x10;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_5) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_16;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 6) {
-        envCtx->skyboxConfig = 0x11;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_6) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_17;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 7) {
-        envCtx->skyboxConfig = var_a0 + 0x12;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_7) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_18 + dayOffset;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 8) {
-        envCtx->skyboxConfig = var_a0 + 0x15;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_8) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_21 + dayOffset;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 9) {
-        envCtx->skyboxConfig = 0x18;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_9) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_24;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 0xA) {
-        envCtx->skyboxConfig = var_a0 + 0x19;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_10) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_25 + dayOffset;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
     }
 
-    if (var_a0 >= 3) {
-        envCtx->skyboxConfig = 0xD;
-        envCtx->changeSkyboxNextConfig = 0xD;
+    if (dayOffset >= 3) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_13;
+        envCtx->changeSkyboxNextConfig = SKYBOX_CONFIG_13;
     }
 
-    if (envCtx->skyboxConfig >= 0x1C) {
-        envCtx->skyboxConfig = 0;
-        envCtx->changeSkyboxNextConfig = 0;
+    if (envCtx->skyboxConfig >= SKYBOX_CONFIG_MAX) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_0;
+        envCtx->changeSkyboxNextConfig = SKYBOX_CONFIG_0;
     }
 
     D_801F4E74 = 0.0f;
@@ -737,7 +774,7 @@ void Environment_Init(PlayState* play2, EnvironmentContext* envCtx, s32 arg2) {
         play->envCtx.precipitation[PRECIP_SNOW_CUR] = 0;
         play->envCtx.precipitation[PRECIP_SNOW_MAX] = 0;
 
-        if (gWeatherMode == WEATHER_MODE_1) {
+        if (gWeatherMode == WEATHER_MODE_RAIN) {
             if (((u32)CURRENT_DAY == 2) && (((void)0, gSaveContext.save.time) >= CLOCK_TIME(7, 0)) &&
                 (((void)0, gSaveContext.save.time) < CLOCK_TIME(17, 30))) {
                 if (Environment_GetStormState(play) != STORM_STATE_OFF) {
@@ -970,8 +1007,8 @@ void Environment_UpdateSkybox(u8 skyboxId, EnvironmentContext* envCtx, SkyboxCon
     u8 skyboxBlend = 0;
     f32 colorWeight = 0.0f;
 
-    if (envCtx->skyboxConfig >= 0x1C) {
-        envCtx->skyboxConfig = 0;
+    if (envCtx->skyboxConfig >= SKYBOX_CONFIG_MAX) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_0;
     }
 
     if ((skyboxId == SKYBOX_NORMAL_SKY) || ((skyboxId == SKYBOX_3) && (D_801F4E74 < 1.0f))) {
@@ -1219,7 +1256,7 @@ void func_800F6CEC(PlayState* play, u8 arg1, AdjLightSettings* adjLightSettings,
             lightSettings[temp_v1_2 + temp_v1].blendRateAndFogNear - lightSettings[temp_v1].blendRateAndFogNear;
     }
 
-    if ((arg1 >= 4) && (arg1 < 8) && (gWeatherMode == WEATHER_MODE_1)) {
+    if ((arg1 >= 4) && (arg1 < 8) && (gWeatherMode == WEATHER_MODE_RAIN)) {
         adjLightSettings->ambientColor[0] = -50;
         adjLightSettings->ambientColor[1] = -100;
         adjLightSettings->ambientColor[2] = -100;
@@ -2448,7 +2485,7 @@ void Environment_UpdateTimeBasedSequence(PlayState* play) {
     //! FAKE:
     if (!gSaveContext.sceneLayer) {}
 
-    if ((play->csCtx.state == 0) && !(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+    if ((play->csCtx.state == 0) && !(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
         switch (play->envCtx.timeSeqState) {
             case TIMESEQ_DAY_BGM:
                 break;
@@ -3074,7 +3111,7 @@ void Environment_SetupSkyboxStars(PlayState* play) {
             phi_f0 = 0.0f;
         }
 
-        phi_f0 = (play->envCtx.skyboxConfig == 0x18) ? 1.0f : phi_f0;
+        phi_f0 = (play->envCtx.skyboxConfig == SKYBOX_CONFIG_24) ? 1.0f : phi_f0;
 
         D_801F4F28 = phi_f0;
         sEnvSkyboxNumStars = gSkyboxNumStars;
@@ -3486,47 +3523,47 @@ void Environment_JumpForwardInTime(void) {
     }
 }
 
-void func_800FEAF4(EnvironmentContext* envCtx) {
-    u8 phi_v1 = 0;
+void Environment_NewDay(EnvironmentContext* envCtx) {
+    u8 dayOffset = 0;
 
     if (((void)0, gSaveContext.save.day) != 0) {
-        phi_v1 = ((void)0, gSaveContext.save.day) - 1;
+        dayOffset = ((void)0, gSaveContext.save.day) - 1;
     }
 
-    envCtx->skyboxConfig = phi_v1 + (D_801F4E31 * 3);
+    envCtx->skyboxConfig = dayOffset + (sInitSkyboxConfig * 3);
     envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
 
-    if (D_801F4E31 == 4) {
-        envCtx->skyboxConfig = 0xE;
+    if (sInitSkyboxConfig == SKYBOX_CONFIG_4) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_14;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 5) {
-        envCtx->skyboxConfig = 0x10;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_5) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_16;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 6) {
-        envCtx->skyboxConfig = 0x11;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_6) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_17;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 7) {
-        envCtx->skyboxConfig = phi_v1 + 0x12;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_7) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_18 + dayOffset;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 8) {
-        envCtx->skyboxConfig = phi_v1 + 0x15;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_8) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_21 + dayOffset;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 9) {
-        envCtx->skyboxConfig = 0x18;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_9) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_24;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
-    } else if (D_801F4E31 == 0xA) {
-        envCtx->skyboxConfig = phi_v1 + 0x19;
+    } else if (sInitSkyboxConfig == SKYBOX_CONFIG_10) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_25 + dayOffset;
         envCtx->changeSkyboxNextConfig = envCtx->skyboxConfig;
     }
 
-    if (phi_v1 >= 3) {
-        envCtx->skyboxConfig = 0xD;
-        envCtx->changeSkyboxNextConfig = 0xD;
+    if (dayOffset >= 3) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_13;
+        envCtx->changeSkyboxNextConfig = SKYBOX_CONFIG_13;
     }
 
-    if (envCtx->skyboxConfig >= 0x1C) {
-        envCtx->skyboxConfig = 0;
-        envCtx->changeSkyboxNextConfig = 0;
+    if (envCtx->skyboxConfig >= SKYBOX_CONFIG_MAX) {
+        envCtx->skyboxConfig = SKYBOX_CONFIG_0;
+        envCtx->changeSkyboxNextConfig = SKYBOX_CONFIG_0;
     }
 
     switch (((void)0, gSaveContext.save.day)) {
diff --git a/src/code/z_message.c b/src/code/z_message.c
index 63330e5076..ca02888171 100644
--- a/src/code/z_message.c
+++ b/src/code/z_message.c
@@ -5725,7 +5725,7 @@ void Message_Update(PlayState* play) {
             }
 
             if ((msgCtx->currentTextId >= 0x1BB2) && (msgCtx->currentTextId <= 0x1BB6) &&
-                (play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+                (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
                 Message_StartTextbox(play, 0x5E6, NULL);
                 break;
             }
@@ -5888,7 +5888,7 @@ void Message_Update(PlayState* play) {
             msgCtx->textboxColorAlphaCurrent -= XREG(70);
             if (msgCtx->textboxColorAlphaCurrent <= 0) {
                 if ((msgCtx->currentTextId >= 0x1BB2) && (msgCtx->currentTextId <= 0x1BB6) &&
-                    (play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+                    (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
                     Message_StartTextbox(play, 0x5E6, NULL);
                     Interface_SetHudVisibility(HUD_VISIBILITY_NONE_ALT);
                 } else {
diff --git a/src/code/z_parameter.c b/src/code/z_parameter.c
index db101efb58..9bf52c4e47 100644
--- a/src/code/z_parameter.c
+++ b/src/code/z_parameter.c
@@ -4405,7 +4405,8 @@ void Interface_DrawClock(PlayState* play) {
     OPEN_DISPS(play->state.gfxCtx);
 
     if ((R_TIME_SPEED != 0) &&
-        ((msgCtx->msgMode == MSGMODE_NONE) || ((play->actorCtx.flags & ACTORCTX_FLAG_1) && !Play_InCsMode(play)) ||
+        ((msgCtx->msgMode == MSGMODE_NONE) ||
+         ((play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) && !Play_InCsMode(play)) ||
          (msgCtx->msgMode == MSGMODE_NONE) || ((msgCtx->currentTextId >= 0x100) && (msgCtx->currentTextId <= 0x200)) ||
          (gSaveContext.gameMode == GAMEMODE_END_CREDITS)) &&
         !FrameAdvance_IsEnabled(&play->state) && !Environment_IsTimeStopped() && (gSaveContext.save.day <= 3)) {
@@ -4428,7 +4429,7 @@ void Interface_DrawClock(PlayState* play) {
                     sClockAlphaTimer1 = 0;
                 }
             } else {
-                if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+                if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
                     sThreeDayClockAlpha = 255;
                 } else {
                     sThreeDayClockAlpha = interfaceCtx->bAlpha;
@@ -4437,7 +4438,7 @@ void Interface_DrawClock(PlayState* play) {
                 sClockAlphaTimer1 = 0;
             }
         } else {
-            if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+            if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
                 sThreeDayClockAlpha = 255;
             } else {
                 sThreeDayClockAlpha = interfaceCtx->bAlpha;
@@ -5432,7 +5433,7 @@ void Interface_DrawPerfectLetters(PlayState* play) {
 }
 
 void Interface_StartMoonCrash(PlayState* play) {
-    if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+    if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
         SEQCMD_DISABLE_PLAY_SEQUENCES(false);
     }
 
diff --git a/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c b/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c
index 4d725be755..46fb96daee 100644
--- a/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c
+++ b/src/overlays/actors/ovl_Dm_Stk/z_dm_stk.c
@@ -1138,7 +1138,7 @@ void DmStk_Init(Actor* thisx, PlayState* play) {
             CollisionCheck_SetInfo2(&this->actor.colChkInfo, &sDamageTable, &sColChkInfoInit);
 
         } else if ((play->sceneId == SCENE_00KEIKOKU) && (gSaveContext.sceneLayer == 0)) {
-            if (!(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+            if (!(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
                 Actor_Kill(&this->actor);
             }
 
@@ -1177,8 +1177,8 @@ void DmStk_Init(Actor* thisx, PlayState* play) {
     Actor_SetScale(&this->actor, 0.01f);
 
     if ((play->sceneId == SCENE_00KEIKOKU) && (gSaveContext.sceneLayer == 3) && (play->csCtx.scriptIndex > 0)) {
-        play->envCtx.skyboxConfig = 15;
-        play->envCtx.changeSkyboxNextConfig = 15;
+        play->envCtx.skyboxConfig = SKYBOX_CONFIG_15;
+        play->envCtx.changeSkyboxNextConfig = SKYBOX_CONFIG_15;
     }
 }
 
@@ -1680,7 +1680,7 @@ void DmStk_HandleCutscene(DmStk* this, PlayState* play) {
                 this->alpha = 0;
                 this->fadeOutState = SK_FADE_OUT_STATE_NONE;
                 SET_WEEKEVENTREG(WEEKEVENTREG_12_04);
-                if (!(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+                if (!(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
                     Actor_Kill(&this->actor);
                 } else {
                     this->shouldDraw = false;
@@ -1867,7 +1867,7 @@ void DmStk_Update(Actor* thisx, PlayState* play) {
 
         // This code is responsible for making in-game time pass while using the telescope in the Astral Observatory.
         // Skull Kid is always loaded in the scene, even if he isn't visible, hence why time always passes.
-        if ((play->actorCtx.flags & ACTORCTX_FLAG_1) && (play->msgCtx.msgMode != MSGMODE_NONE) &&
+        if ((play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) && (play->msgCtx.msgMode != MSGMODE_NONE) &&
             (play->msgCtx.currentTextId == 0x5E6) && !FrameAdvance_IsEnabled(&play->state) &&
             (play->transitionTrigger == TRANS_TRIGGER_OFF) && (CutsceneManager_GetCurrentCsId() == CS_ID_NONE) &&
             (play->csCtx.state == CS_STATE_IDLE)) {
@@ -1880,8 +1880,8 @@ void DmStk_Update(Actor* thisx, PlayState* play) {
     }
 
     if ((play->sceneId == SCENE_00KEIKOKU) && (gSaveContext.sceneLayer == 3) && (play->csCtx.scriptIndex > 0)) {
-        play->envCtx.skyboxConfig = 15;
-        play->envCtx.changeSkyboxNextConfig = 15;
+        play->envCtx.skyboxConfig = SKYBOX_CONFIG_15;
+        play->envCtx.changeSkyboxNextConfig = SKYBOX_CONFIG_15;
     }
 }
 
diff --git a/src/overlays/actors/ovl_En_Fall/z_en_fall.c b/src/overlays/actors/ovl_En_Fall/z_en_fall.c
index 1d78c27ef0..581fe6408a 100644
--- a/src/overlays/actors/ovl_En_Fall/z_en_fall.c
+++ b/src/overlays/actors/ovl_En_Fall/z_en_fall.c
@@ -283,7 +283,7 @@ void EnFall_Setup(EnFall* this, PlayState* play) {
                 this->actor.draw = NULL;
                 this->actionFunc = EnFall_MoonsTear_Fall;
                 Actor_SetScale(&this->actor, 0.02f);
-                if (!(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+                if (!(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
                     Actor_Kill(&this->actor);
                 }
                 moon = EnFall_MoonsTear_GetTerminaFieldMoon(play);
diff --git a/src/overlays/actors/ovl_En_Ge2/z_en_ge2.c b/src/overlays/actors/ovl_En_Ge2/z_en_ge2.c
index a6f201813f..8a2abaff86 100644
--- a/src/overlays/actors/ovl_En_Ge2/z_en_ge2.c
+++ b/src/overlays/actors/ovl_En_Ge2/z_en_ge2.c
@@ -112,7 +112,7 @@ void EnGe2_Init(Actor* thisx, PlayState* play) {
     EnGe2_SetupPath(this, play);
 
     this->picto.actor.flags |= ACTOR_FLAG_10;
-    if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+    if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
         this->picto.actor.flags |= (ACTOR_FLAG_10 | ACTOR_FLAG_20);
     }
 
diff --git a/src/overlays/actors/ovl_En_Scopecoin/z_en_scopecoin.c b/src/overlays/actors/ovl_En_Scopecoin/z_en_scopecoin.c
index 4f9220ec2b..d0282d4887 100644
--- a/src/overlays/actors/ovl_En_Scopecoin/z_en_scopecoin.c
+++ b/src/overlays/actors/ovl_En_Scopecoin/z_en_scopecoin.c
@@ -50,7 +50,7 @@ void EnScopecoin_Init(Actor* thisx, PlayState* play) {
         this->rupeeIndex = 0;
     }
 
-    if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+    if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
         if ((this->rupeeIndex == 2) || (this->rupeeIndex == 6)) {
             if (Flags_GetCollectible(play, OBJMUPICT_GET_RUPEE_FLAG(&this->actor))) {
                 Actor_Kill(&this->actor);
diff --git a/src/overlays/actors/ovl_En_Scopecrow/z_en_scopecrow.c b/src/overlays/actors/ovl_En_Scopecrow/z_en_scopecrow.c
index a49c08b77b..2117c48781 100644
--- a/src/overlays/actors/ovl_En_Scopecrow/z_en_scopecrow.c
+++ b/src/overlays/actors/ovl_En_Scopecrow/z_en_scopecrow.c
@@ -306,7 +306,7 @@ void EnScopecrow_Init(Actor* thisx, PlayState* play) {
         return;
     }
 
-    if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+    if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
         SkelAnime_InitFlex(play, &this->skelAnime, &gGuaySkel, &gGuayFlyAnim, this->jointTable, this->morphTable,
                            OBJECT_CROW_LIMB_MAX);
         ActorShape_Init(&this->actor.shape, 2000.0f, ActorShadow_DrawCircle, 20.0f);
diff --git a/src/overlays/actors/ovl_En_Scopenuts/z_en_scopenuts.c b/src/overlays/actors/ovl_En_Scopenuts/z_en_scopenuts.c
index 99a0a7932d..0373571805 100644
--- a/src/overlays/actors/ovl_En_Scopenuts/z_en_scopenuts.c
+++ b/src/overlays/actors/ovl_En_Scopenuts/z_en_scopenuts.c
@@ -707,7 +707,7 @@ void EnScopenuts_Init(Actor* thisx, PlayState* play) {
     if (ENSCOPENUTS_GET_3E0(&this->actor) == ENSCOPENUTS_3E0_0) {
         if (CHECK_WEEKEVENTREG(WEEKEVENTREG_52_40)) {
             Actor_Kill(&this->actor);
-        } else if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+        } else if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
             this->path =
                 SubS_GetPathByIndex(play, ENSCOPENUTS_GET_PATH_INDEX(&this->actor), ENSCOPENUTS_PATH_INDEX_NONE);
             this->actor.draw = NULL;
diff --git a/src/overlays/actors/ovl_En_Sth/z_en_sth.c b/src/overlays/actors/ovl_En_Sth/z_en_sth.c
index a2759f3bd2..57d9b96d83 100644
--- a/src/overlays/actors/ovl_En_Sth/z_en_sth.c
+++ b/src/overlays/actors/ovl_En_Sth/z_en_sth.c
@@ -131,7 +131,7 @@ void EnSth_Init(Actor* thisx, PlayState* play) {
 
     switch (STH_GET_TYPE(&this->actor)) {
         case STH_TYPE_UNUSED_1:
-            if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+            if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
                 this->actor.flags |= (ACTOR_FLAG_10 | ACTOR_FLAG_20);
                 this->actionFunc = EnSth_DefaultIdle;
             } else {
diff --git a/src/overlays/actors/ovl_En_Sth2/z_en_sth2.c b/src/overlays/actors/ovl_En_Sth2/z_en_sth2.c
index cf902578c4..9859a3054d 100644
--- a/src/overlays/actors/ovl_En_Sth2/z_en_sth2.c
+++ b/src/overlays/actors/ovl_En_Sth2/z_en_sth2.c
@@ -40,7 +40,7 @@ void EnSth2_Init(Actor* thisx, PlayState* play) {
     ActorShape_Init(&this->actor.shape, 0.0f, ActorShadow_DrawCircle, 36.0f);
     this->unused = 0;
 
-    if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+    if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
         this->actor.flags |= (ACTOR_FLAG_10 | ACTOR_FLAG_20);
     } else {
         Actor_Kill(&this->actor);
diff --git a/src/overlays/actors/ovl_En_Test4/z_en_test4.c b/src/overlays/actors/ovl_En_Test4/z_en_test4.c
index 0e2e81bbd8..c4e1aa7c18 100644
--- a/src/overlays/actors/ovl_En_Test4/z_en_test4.c
+++ b/src/overlays/actors/ovl_En_Test4/z_en_test4.c
@@ -1,7 +1,9 @@
 /*
  * File: z_en_test4.c
  * Overlay: ovl_En_Test4
- * Description: Three-Day Events
+ * Description: Three-Day Events: day-night transitions, shrink screen before next day,
+ * play bell sounds, triggers clocktown midnight cutscene, controls weather events,
+ * sets skybox star count
  */
 
 #include "z_en_test4.h"
@@ -17,8 +19,8 @@ void EnTest4_Init(Actor* thisx, PlayState* play);
 void EnTest4_Destroy(Actor* thisx, PlayState* play);
 void EnTest4_Update(Actor* thisx, PlayState* play);
 
-void func_80A42AB8(EnTest4* this, PlayState* play);
-void func_80A42F20(EnTest4* this, PlayState* play);
+void EnTest4_HandleEvents(EnTest4* this, PlayState* play);
+void EnTest4_HandleCutscene(EnTest4* this, PlayState* play);
 
 ActorInit En_Test4_InitVars = {
     /**/ ACTOR_EN_TEST4,
@@ -33,253 +35,284 @@ ActorInit En_Test4_InitVars = {
 };
 
 static s32 sIsLoaded = false;
-// "Night of ..."
-static s16 sNightMessages1[] = { 0x1BB4, 0x1BB5, 0x1BB6 };
-// "Dawn of ..." (Note: first two message are the same)
-static s16 sDayMessages1[] = { 0x1BB2, 0x1BB2, 0x1BB3 };
-// "Night of ..."
-static s16 sNightMessages2[] = { 0x1BB4, 0x1BB5, 0x1BB6 };
-// "Dawn of ..." (Note: first two message are the same)
-static s16 sDayMessages2[] = { 0x1BB2, 0x1BB2, 0x1BB3 };
-static u16 D_80A43364[] = { CLOCK_TIME(6, 0), CLOCK_TIME(18, 0) };
 
-static s16 sCsIdList[2];
+static s16 sCsIdList[THREEDAY_DAYTIME_MAX];
 static s16 sCurCsId;
 
-void func_80A41D70(EnTest4* this, PlayState* play) {
-    if (this->csIdIndex != 0) {
-        Message_DisplaySceneTitleCard(play, sNightMessages1[CURRENT_DAY - 1]);
-    } else if ((sCsIdList[this->csIdIndex] < 0) || (play->actorCtx.flags & ACTORCTX_FLAG_1)) {
-        if (play->actorCtx.flags & ACTORCTX_FLAG_1) {
+/**
+ * Handles the transition from day-night and night-day.
+ * This does not handle DayTelop transitions.
+ * Only differs from `EnTest4_HandleDayNightSwap` with an extra telescope check when turning day without a cutscene.
+ */
+void EnTest4_HandleDayNightSwapFromInit(EnTest4* this, PlayState* play) {
+    // "Night of ..."
+    static s16 sNightOfTextIds[] = { 0x1BB4, 0x1BB5, 0x1BB6 };
+    // "Dawn of ..." (Note: first two message are the same)
+    static s16 sDawnOfTextIds[] = { 0x1BB2, 0x1BB2, 0x1BB3 };
+
+    if (this->daytimeIndex != THREEDAY_DAYTIME_NIGHT) {
+        // Previously day, turning night
+        Message_DisplaySceneTitleCard(play, sNightOfTextIds[CURRENT_DAY - 1]);
+    } else if ((sCsIdList[this->daytimeIndex] <= CS_ID_NONE) || (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
+        // Previously night, turning day, without a cutscene
+        if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
             Sram_IncrementDay();
             gSaveContext.save.time = CLOCK_TIME(6, 0);
-            Message_DisplaySceneTitleCard(play, sDayMessages1[CURRENT_DAY - 1]);
+            Message_DisplaySceneTitleCard(play, sDawnOfTextIds[CURRENT_DAY - 1]);
         } else {
-            this->csIdIndex = 0;
-            this->unk_146 = gSaveContext.save.time += CLOCK_TIME_MINUTE;
+            this->daytimeIndex = THREEDAY_DAYTIME_NIGHT;
+            gSaveContext.save.time += CLOCK_TIME_MINUTE;
+            this->prevTime = CURRENT_TIME;
         }
 
         Interface_NewDay(play, CURRENT_DAY);
         gSceneSeqState = SCENESEQ_MORNING;
         Environment_PlaySceneSequence(play);
-        func_800FEAF4(&play->envCtx);
-        this->actionFunc = func_80A42AB8;
+        Environment_NewDay(&play->envCtx);
+        this->actionFunc = EnTest4_HandleEvents;
     }
 
     if (gSaveContext.cutsceneTrigger == 0) {
-        if ((sCsIdList[this->csIdIndex] >= 0) && !(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
-            this->actionFunc = func_80A42F20;
-            sCurCsId = sCsIdList[this->csIdIndex];
+        // No scripted cutscene
+        if ((sCsIdList[this->daytimeIndex] > CS_ID_NONE) && !(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
+            // Day-Night transition cutscene
+            this->actionFunc = EnTest4_HandleCutscene;
+            sCurCsId = sCsIdList[this->daytimeIndex];
             this->transitionCsTimer = 0;
             SET_EVENTINF(EVENTINF_17);
-        } else if (this->csIdIndex == 0) {
+        } else if (this->daytimeIndex == THREEDAY_DAYTIME_NIGHT) {
+            // Previously night, turning day, without cutscene
             Audio_PlaySfx(NA_SE_EV_CHICKEN_CRY_M);
         } else {
+            // Previously day, turning night, without cutscene
             Audio_PlaySfx_2(NA_SE_EV_DOG_CRY_EVENING);
         }
     } else {
-        this->actionFunc = func_80A42AB8;
-        if (this->csIdIndex == 0) {
-            this->csIdIndex = 1;
+        // In a scripted cutscene
+        this->actionFunc = EnTest4_HandleEvents;
+        if (this->daytimeIndex == THREEDAY_DAYTIME_NIGHT) {
+            this->daytimeIndex = THREEDAY_DAYTIME_DAY;
         } else {
-            this->csIdIndex = 0;
+            this->daytimeIndex = THREEDAY_DAYTIME_NIGHT;
         }
 
-        this->unk_146 = gSaveContext.save.time += CLOCK_TIME_MINUTE;
+        gSaveContext.save.time += CLOCK_TIME_MINUTE;
+        this->prevTime = CURRENT_TIME;
     }
 }
 
-void func_80A41FA4(EnTest4* this, PlayState* play) {
-    if (this->csIdIndex != 0) {
-        Message_DisplaySceneTitleCard(play, sNightMessages2[CURRENT_DAY - 1]);
-    } else if ((sCsIdList[this->csIdIndex] < 0) || (play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+/**
+ * Handles the transition from day-night and night-day.
+ * This does not handle DayTelop transitions.
+ */
+void EnTest4_HandleDayNightSwap(EnTest4* this, PlayState* play) {
+    // "Night of ..."
+    static s16 sNightOfTextIds[] = { 0x1BB4, 0x1BB5, 0x1BB6 };
+    // "Dawn of ..." (Note: first two message are the same)
+    static s16 sDawnOfTextIds[] = { 0x1BB2, 0x1BB2, 0x1BB3 };
+
+    if (this->daytimeIndex != THREEDAY_DAYTIME_NIGHT) {
+        // Previously day, turning night
+        Message_DisplaySceneTitleCard(play, sNightOfTextIds[CURRENT_DAY - 1]);
+    } else if ((sCsIdList[this->daytimeIndex] <= CS_ID_NONE) || (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
+        // Previously night, turning day, without a cutscene
         Sram_IncrementDay();
         gSaveContext.save.time = CLOCK_TIME(6, 0);
         Interface_NewDay(play, CURRENT_DAY);
-        Message_DisplaySceneTitleCard(play, sDayMessages2[CURRENT_DAY - 1]);
+        Message_DisplaySceneTitleCard(play, sDawnOfTextIds[CURRENT_DAY - 1]);
         gSceneSeqState = SCENESEQ_MORNING;
         Environment_PlaySceneSequence(play);
-        func_800FEAF4(&play->envCtx);
-        this->actionFunc = func_80A42AB8;
+        Environment_NewDay(&play->envCtx);
+        this->actionFunc = EnTest4_HandleEvents;
     }
 
     if (gSaveContext.cutsceneTrigger == 0) {
-        if ((sCsIdList[this->csIdIndex] >= 0) && !(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
-            this->actionFunc = func_80A42F20;
-            sCurCsId = sCsIdList[this->csIdIndex];
+        // No scripted cutscene
+        if ((sCsIdList[this->daytimeIndex] > CS_ID_NONE) && !(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
+            // Day-Night transition cutscene
+            this->actionFunc = EnTest4_HandleCutscene;
+            sCurCsId = sCsIdList[this->daytimeIndex];
             this->transitionCsTimer = 0;
             SET_EVENTINF(EVENTINF_17);
-        } else if (this->csIdIndex == 0) {
+        } else if (this->daytimeIndex == THREEDAY_DAYTIME_NIGHT) {
+            // Previously night, turning day, without cutscene
             Audio_PlaySfx(NA_SE_EV_CHICKEN_CRY_M);
         } else {
+            // Previously day, turning night, without cutscene
             Audio_PlaySfx_2(NA_SE_EV_DOG_CRY_EVENING);
         }
     } else {
-        this->actionFunc = func_80A42AB8;
-        if (this->csIdIndex == 0) {
-            this->csIdIndex = 1;
+        // In a scripted cutscene
+        this->actionFunc = EnTest4_HandleEvents;
+        if (this->daytimeIndex == THREEDAY_DAYTIME_NIGHT) {
+            this->daytimeIndex = THREEDAY_DAYTIME_DAY;
         } else {
-            this->csIdIndex = 0;
+            this->daytimeIndex = THREEDAY_DAYTIME_NIGHT;
         }
 
-        this->unk_146 = gSaveContext.save.time += CLOCK_TIME_MINUTE;
+        gSaveContext.save.time += CLOCK_TIME_MINUTE;
+        this->prevTime = CURRENT_TIME;
     }
 }
 
-// Bells on last day
-void func_80A42198(EnTest4* this) {
-    if ((gSaveContext.save.time >= CLOCK_TIME(6, 0)) && (gSaveContext.save.time <= CLOCK_TIME(18, 0))) {
-        if (gSaveContext.save.time < CLOCK_TIME(17, 30)) {
+/**
+ * Get the next bell time on Day 3
+ */
+void EnTest4_GetBellTimeOnDay3(EnTest4* this) {
+    if ((CURRENT_TIME >= CLOCK_TIME(6, 0)) && (CURRENT_TIME <= CLOCK_TIME(18, 0))) {
+        if (CURRENT_TIME < CLOCK_TIME(17, 30)) {
             this->nextBellTime = CLOCK_TIME(17, 30);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 36)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 36)) {
             this->nextBellTime = CLOCK_TIME(17, 36);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 42)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 42)) {
             this->nextBellTime = CLOCK_TIME(17, 42);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 48)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 48)) {
             this->nextBellTime = CLOCK_TIME(17, 48);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 54)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 54)) {
             this->nextBellTime = CLOCK_TIME(17, 54);
         } else {
             this->nextBellTime = CLOCK_TIME(0, 0);
         }
-    } else if (gSaveContext.save.time > CLOCK_TIME(6, 0)) {
+    } else if (CURRENT_TIME > CLOCK_TIME(6, 0)) {
         this->nextBellTime = CLOCK_TIME(0, 0);
-    } else if (gSaveContext.save.time < CLOCK_TIME(0, 10)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(0, 10)) {
         this->nextBellTime = CLOCK_TIME(0, 10);
-    } else if (gSaveContext.save.time < CLOCK_TIME(0, 20)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(0, 20)) {
         this->nextBellTime = CLOCK_TIME(0, 20);
-    } else if (gSaveContext.save.time < CLOCK_TIME(0, 30)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(0, 30)) {
         this->nextBellTime = CLOCK_TIME(0, 30);
-    } else if (gSaveContext.save.time < CLOCK_TIME(0, 40)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(0, 40)) {
         this->nextBellTime = CLOCK_TIME(0, 40);
-    } else if (gSaveContext.save.time < CLOCK_TIME(0, 50)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(0, 50)) {
         this->nextBellTime = CLOCK_TIME(0, 50);
-    } else if (gSaveContext.save.time < CLOCK_TIME(1, 0)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(1, 0)) {
         this->nextBellTime = CLOCK_TIME(1, 0);
-    } else if (gSaveContext.save.time < CLOCK_TIME(1, 10)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(1, 10)) {
         this->nextBellTime = CLOCK_TIME(1, 10);
-    } else if (gSaveContext.save.time < CLOCK_TIME(1, 20)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(1, 20)) {
         this->nextBellTime = CLOCK_TIME(1, 20);
-    } else if (gSaveContext.save.time < CLOCK_TIME(1, 30) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(1, 30) - 1) {
         this->nextBellTime = CLOCK_TIME(1, 30) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(1, 40) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(1, 40) - 1) {
         this->nextBellTime = CLOCK_TIME(1, 40) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(1, 50) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(1, 50) - 1) {
         this->nextBellTime = CLOCK_TIME(1, 50) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(2, 0)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(2, 0)) {
         this->nextBellTime = CLOCK_TIME(2, 0);
-    } else if (gSaveContext.save.time < CLOCK_TIME(2, 10)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(2, 10)) {
         this->nextBellTime = CLOCK_TIME(2, 10);
-    } else if (gSaveContext.save.time < CLOCK_TIME(2, 20)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(2, 20)) {
         this->nextBellTime = CLOCK_TIME(2, 20);
-    } else if (gSaveContext.save.time < CLOCK_TIME(2, 30)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(2, 30)) {
         this->nextBellTime = CLOCK_TIME(2, 30);
-    } else if (gSaveContext.save.time < CLOCK_TIME(2, 40)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(2, 40)) {
         this->nextBellTime = CLOCK_TIME(2, 40);
-    } else if (gSaveContext.save.time < CLOCK_TIME(2, 50)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(2, 50)) {
         this->nextBellTime = CLOCK_TIME(2, 50);
-    } else if (gSaveContext.save.time < CLOCK_TIME(3, 0)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(3, 0)) {
         this->nextBellTime = CLOCK_TIME(3, 0);
-    } else if (gSaveContext.save.time < CLOCK_TIME(3, 10)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(3, 10)) {
         this->nextBellTime = CLOCK_TIME(3, 10);
-    } else if (gSaveContext.save.time < CLOCK_TIME(3, 20)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(3, 20)) {
         this->nextBellTime = CLOCK_TIME(3, 20);
-    } else if (gSaveContext.save.time < CLOCK_TIME(3, 30)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(3, 30)) {
         this->nextBellTime = CLOCK_TIME(3, 30);
-    } else if (gSaveContext.save.time < CLOCK_TIME(3, 40)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(3, 40)) {
         this->nextBellTime = CLOCK_TIME(3, 40);
-    } else if (gSaveContext.save.time < CLOCK_TIME(3, 50)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(3, 50)) {
         this->nextBellTime = CLOCK_TIME(3, 50);
-    } else if (gSaveContext.save.time < CLOCK_TIME(4, 0)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(4, 0)) {
         this->nextBellTime = CLOCK_TIME(4, 0);
-    } else if (gSaveContext.save.time < CLOCK_TIME(4, 10)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(4, 10)) {
         this->nextBellTime = CLOCK_TIME(4, 10);
-    } else if (gSaveContext.save.time < CLOCK_TIME(4, 20)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(4, 20)) {
         this->nextBellTime = CLOCK_TIME(4, 20);
-    } else if (gSaveContext.save.time < CLOCK_TIME(4, 30) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(4, 30) - 1) {
         this->nextBellTime = CLOCK_TIME(4, 30) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(4, 40) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(4, 40) - 1) {
         this->nextBellTime = CLOCK_TIME(4, 40) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(4, 50) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(4, 50) - 1) {
         this->nextBellTime = CLOCK_TIME(4, 50) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 0)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 0)) {
         this->nextBellTime = CLOCK_TIME(5, 0);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 5)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 5)) {
         this->nextBellTime = CLOCK_TIME(5, 5);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 10)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 10)) {
         this->nextBellTime = CLOCK_TIME(5, 10);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 15) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 15) - 1) {
         this->nextBellTime = CLOCK_TIME(5, 15) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 20)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 20)) {
         this->nextBellTime = CLOCK_TIME(5, 20);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 25) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 25) - 1) {
         this->nextBellTime = CLOCK_TIME(5, 25) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 30)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 30)) {
         this->nextBellTime = CLOCK_TIME(5, 30);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 33) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 33) - 1) {
         this->nextBellTime = CLOCK_TIME(5, 33) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 36)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 36)) {
         this->nextBellTime = CLOCK_TIME(5, 36);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 39) - 1) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 39) - 1) {
         this->nextBellTime = CLOCK_TIME(5, 39) - 1;
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 42)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 42)) {
         this->nextBellTime = CLOCK_TIME(5, 42);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 45)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 45)) {
         this->nextBellTime = CLOCK_TIME(5, 45);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 48)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 48)) {
         this->nextBellTime = CLOCK_TIME(5, 48);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 51)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 51)) {
         this->nextBellTime = CLOCK_TIME(5, 51);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 54)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 54)) {
         this->nextBellTime = CLOCK_TIME(5, 54);
-    } else if (gSaveContext.save.time < CLOCK_TIME(5, 57)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(5, 57)) {
         this->nextBellTime = CLOCK_TIME(5, 57);
-    } else if (gSaveContext.save.time < CLOCK_TIME(6, 0)) {
+    } else if (CURRENT_TIME < CLOCK_TIME(6, 0)) {
         this->nextBellTime = CLOCK_TIME(6, 0);
     }
 }
 
-// Bells on first and second day
-void func_80A425E4(EnTest4* this, PlayState* play) {
+/**
+ * Get the next bell time and shrinks screen near the end of the day on days 1 and 2
+ */
+void EnTest4_GetBellTimeAndShrinkScreenBeforeDay3(EnTest4* this, PlayState* play) {
     gSaveContext.screenScale = 1000.0f;
 
-    if ((gSaveContext.save.time >= CLOCK_TIME(6, 0)) && (gSaveContext.save.time < CLOCK_TIME(18, 0))) {
-        if (gSaveContext.save.time < CLOCK_TIME(17, 30)) {
+    if ((CURRENT_TIME >= CLOCK_TIME(6, 0)) && (CURRENT_TIME < CLOCK_TIME(18, 0))) {
+        if (CURRENT_TIME < CLOCK_TIME(17, 30)) {
             this->nextBellTime = CLOCK_TIME(17, 30);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 36)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 36)) {
             this->nextBellTime = CLOCK_TIME(17, 36);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 42)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 42)) {
             this->nextBellTime = CLOCK_TIME(17, 42);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 48)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 48)) {
             this->nextBellTime = CLOCK_TIME(17, 48);
-        } else if (gSaveContext.save.time < CLOCK_TIME(17, 54)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(17, 54)) {
             this->nextBellTime = CLOCK_TIME(17, 54);
         } else {
             this->nextBellTime = CLOCK_TIME(5, 30);
         }
     } else {
-        if (gSaveContext.save.time < CLOCK_TIME(5, 30)) {
+        if (CURRENT_TIME < CLOCK_TIME(5, 30)) {
             this->nextBellTime = CLOCK_TIME(5, 30);
-        } else if (gSaveContext.save.time < CLOCK_TIME(5, 36)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(5, 36)) {
             this->nextBellTime = CLOCK_TIME(5, 36);
-        } else if (gSaveContext.save.time < CLOCK_TIME(5, 42)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(5, 42)) {
             this->nextBellTime = CLOCK_TIME(5, 42);
             gSaveContext.screenScale -= 50.0f;
-        } else if (gSaveContext.save.time < CLOCK_TIME(5, 48)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(5, 48)) {
             this->nextBellTime = CLOCK_TIME(5, 48);
             gSaveContext.screenScale -= 100.0f;
-        } else if (gSaveContext.save.time < CLOCK_TIME(5, 54)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(5, 54)) {
             this->nextBellTime = CLOCK_TIME(5, 54);
             gSaveContext.screenScale -= 150.0f;
-        } else if (gSaveContext.save.time < CLOCK_TIME(6, 0)) {
+        } else if (CURRENT_TIME < CLOCK_TIME(6, 0)) {
             this->nextBellTime = CLOCK_TIME(17, 30);
             gSaveContext.screenScale -= 200.0f;
         } else {
             this->nextBellTime = CLOCK_TIME(17, 30);
         }
 
-        if ((sCsIdList[this->csIdIndex] < 0) || (play->actorCtx.flags & ACTORCTX_FLAG_1) || (CURRENT_DAY == 3) ||
-            (gSaveContext.save.time >= CLOCK_TIME(17, 0))) {
+        if ((sCsIdList[this->daytimeIndex] <= CS_ID_NONE) || (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) ||
+            (CURRENT_DAY == 3) || (CURRENT_TIME >= CLOCK_TIME(17, 0))) {
             gSaveContext.screenScale = 1000.0f;
         }
         if (gSaveContext.screenScale != 1000.0f) {
@@ -289,20 +322,20 @@ void func_80A425E4(EnTest4* this, PlayState* play) {
 }
 
 void EnTest4_Init(Actor* thisx, PlayState* play) {
-    s32 dayTemp;
+    s32 eventDayCount;
     EnTest4* this = THIS;
     Player* player = GET_PLAYER(play);
     s8 csId = this->actor.csId;
 
-    sCsIdList[0] = csId;
-    if (csId >= 0) {
-        ActorCutscene* csEntry = CutsceneManager_GetCutsceneEntry(sCsIdList[0]);
+    sCsIdList[THREEDAY_DAYTIME_NIGHT] = csId;
+    if (csId > CS_ID_NONE) {
+        ActorCutscene* csEntry = CutsceneManager_GetCutsceneEntry(sCsIdList[THREEDAY_DAYTIME_NIGHT]);
 
-        SET_EVENTINF(EVENTINF_52);
-        sCsIdList[1] = csEntry->additionalCsId;
+        SET_EVENTINF(EVENTINF_HAS_DAYTIME_TRANSITION_CS);
+        sCsIdList[THREEDAY_DAYTIME_DAY] = csEntry->additionalCsId;
     } else {
-        CLEAR_EVENTINF(EVENTINF_52);
-        sCsIdList[1] = sCsIdList[0];
+        CLEAR_EVENTINF(EVENTINF_HAS_DAYTIME_TRANSITION_CS);
+        sCsIdList[THREEDAY_DAYTIME_DAY] = sCsIdList[THREEDAY_DAYTIME_NIGHT];
     }
 
     if (sIsLoaded || CHECK_EVENTINF(EVENTINF_TRIGGER_DAYTELOP)) {
@@ -312,49 +345,51 @@ void EnTest4_Init(Actor* thisx, PlayState* play) {
         this->actor.room = -1;
         gSaveContext.screenScaleFlag = false;
         gSaveContext.screenScale = 1000.0f;
+
         if (CURRENT_DAY == 0) {
-            if (gSaveContext.save.time < CLOCK_TIME(6, 1)) {
+            if (CURRENT_TIME < CLOCK_TIME(6, 1)) {
                 gSaveContext.save.time = CLOCK_TIME(6, 0);
                 gSaveContext.gameMode = GAMEMODE_NORMAL;
                 STOP_GAMESTATE(&play->state);
                 SET_NEXT_GAMESTATE(&play->state, DayTelop_Init, sizeof(DayTelopState));
-                this->csIdIndex = 1;
+                this->daytimeIndex = THREEDAY_DAYTIME_DAY;
                 gSaveContext.save.time = CLOCK_TIME(6, 0);
                 Actor_Kill(&this->actor);
             } else {
                 gSaveContext.save.day = 1;
-                dayTemp = gSaveContext.save.day;
-                gSaveContext.save.eventDayCount = dayTemp;
-                this->csIdIndex = 1;
-                this->unk_146 = gSaveContext.save.time;
-                this->actionFunc = func_80A42AB8;
+                eventDayCount = gSaveContext.save.day;
+                gSaveContext.save.eventDayCount = eventDayCount;
+                this->daytimeIndex = THREEDAY_DAYTIME_DAY;
+                this->prevTime = CURRENT_TIME;
+                this->actionFunc = EnTest4_HandleEvents;
             }
-        } else if (gSaveContext.save.time == CLOCK_TIME(6, 0)) {
-            this->csIdIndex = 0;
-            func_80A41D70(this, play);
-            if ((gSaveContext.cutsceneTrigger == 0) && (sCsIdList[this->csIdIndex] >= 0) &&
-                !(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+        } else if (CURRENT_TIME == CLOCK_TIME(6, 0)) {
+            this->daytimeIndex = THREEDAY_DAYTIME_NIGHT;
+            EnTest4_HandleDayNightSwapFromInit(this, play);
+            if ((gSaveContext.cutsceneTrigger == 0) && (sCsIdList[this->daytimeIndex] > CS_ID_NONE) &&
+                !(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
                 player->stateFlags1 |= PLAYER_STATE1_200;
             }
         } else {
-            if ((gSaveContext.save.time > CLOCK_TIME(18, 0)) || (gSaveContext.save.time < CLOCK_TIME(6, 0))) {
-                this->csIdIndex = 0;
+            if ((CURRENT_TIME > CLOCK_TIME(18, 0)) || (CURRENT_TIME < CLOCK_TIME(6, 0))) {
+                this->daytimeIndex = THREEDAY_DAYTIME_NIGHT;
             } else {
-                this->csIdIndex = 1;
+                this->daytimeIndex = THREEDAY_DAYTIME_DAY;
             }
-            this->unk_146 = gSaveContext.save.time;
-            this->actionFunc = func_80A42AB8;
+            this->prevTime = CURRENT_TIME;
+            this->actionFunc = EnTest4_HandleEvents;
         }
     }
 
     if (CURRENT_DAY == 3) {
-        func_80A42198(this);
+        EnTest4_GetBellTimeOnDay3(this);
     } else {
-        func_80A425E4(this, play);
+        EnTest4_GetBellTimeAndShrinkScreenBeforeDay3(this, play);
     }
 
-    this->lastBellTime = gSaveContext.save.time;
-    if ((sCsIdList[this->csIdIndex] < 0) || (play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+    this->prevBellTime = CURRENT_TIME;
+
+    if ((sCsIdList[this->daytimeIndex] <= CS_ID_NONE) || (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
         gSaveContext.screenScaleFlag = false;
         gSaveContext.screenScale = 1000.0f;
     }
@@ -363,39 +398,60 @@ void EnTest4_Init(Actor* thisx, PlayState* play) {
 void EnTest4_Destroy(Actor* thisx, PlayState* play) {
 }
 
-void func_80A42AB8(EnTest4* this, PlayState* play) {
+/**
+ * This function checks for two-specific time-based events:
+ * 1) The day-night transitions
+ * 2) The play bells sfx event, which contains screen shrinking and the clocktown day 3 midnight cutscene trigger
+ */
+void EnTest4_HandleEvents(EnTest4* this, PlayState* play) {
+    static u16 sDayNightTransitionTimes[THREEDAY_DAYTIME_MAX] = {
+        CLOCK_TIME(6, 0),  // THREEDAY_DAYTIME_NIGHT
+        CLOCK_TIME(18, 0), // THREEDAY_DAYTIME_DAY
+    };
     Player* player = GET_PLAYER(play);
 
     if ((play->transitionMode == TRANS_MODE_OFF) && !Play_InCsMode(play) && (play->numSetupActors <= 0) &&
         (play->roomCtx.status == 0) && !Play_IsDebugCamEnabled()) {
-        s16 temp_a2;
-        u16 temp_a0 = D_80A43364[this->csIdIndex];
-        s16 temp_a3;
-        s16 bellDiff;
-        s16 new_var;
+        u16 transitionTime = sDayNightTransitionTimes[this->daytimeIndex];
+        s16 curTimeUntilTransition;
+        s16 prevTimeUntilTransition;
+        s16 prevTimeUntilBell;
+        s16 curTimeUntilBell;
 
-        temp_a3 = gSaveContext.save.time - temp_a0;
-        temp_a2 = this->unk_146 - temp_a0;
-        bellDiff = this->lastBellTime - this->nextBellTime;
-        new_var = gSaveContext.save.time - this->nextBellTime;
+        curTimeUntilTransition = CURRENT_TIME - transitionTime;
+        prevTimeUntilTransition = this->prevTime - transitionTime;
 
-        if ((temp_a3 * temp_a2) <= 0) {
+        prevTimeUntilBell = this->prevBellTime - this->nextBellTime;
+        curTimeUntilBell = CURRENT_TIME - this->nextBellTime;
+
+        // When the day-night transition time is passed:
+        // `curTimeUntilTransition` will be slightly positive (ahead transition time)
+        // `prevTimeUntilTransition` will be slightly negative (behind transition time)
+        // Only when the signs are different will this condition pass
+        if ((curTimeUntilTransition * prevTimeUntilTransition) <= 0) {
+            // day-night transition is occuring
             gSaveContext.unk_3CA7 = 1;
             if (play->actorCtx.flags & ACTORCTX_FLAG_PICTO_BOX_ON) {
                 play->actorCtx.flags &= ~ACTORCTX_FLAG_PICTO_BOX_ON;
             }
 
-            if (temp_a0 != CLOCK_TIME(6, 0)) {
-                func_80A41FA4(this, play);
-            } else if (temp_a0 == CLOCK_TIME(6, 0)) {
+            if (transitionTime != CLOCK_TIME(6, 0)) {
+                // previously day, turning night
+                EnTest4_HandleDayNightSwap(this, play);
+            } else if (transitionTime == CLOCK_TIME(6, 0)) {
+                // previously night, turning day
                 if (CURRENT_DAY == 3) {
+                    // Turn day with mooncrash
                     Interface_StartMoonCrash(play);
                     Actor_Kill(&this->actor);
                     SET_EVENTINF(EVENTINF_17);
-                } else if (((sCsIdList[this->csIdIndex] < 0) || (play->actorCtx.flags & ACTORCTX_FLAG_1)) &&
+                } else if (((sCsIdList[this->daytimeIndex] <= CS_ID_NONE) ||
+                            (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) &&
                            (CURRENT_DAY != 3)) {
-                    func_80A41FA4(this, play);
+                    // Turn day without cutscene
+                    EnTest4_HandleDayNightSwap(this, play);
                 } else {
+                    // Turn day with DayTelop cutscene
                     gSaveContext.screenScale = 0.0f;
                     Play_SetRespawnData(&play->state, RESPAWN_MODE_DOWN, Entrance_CreateFromSpawn(0), player->unk_3CE,
                                         PLAYER_PARAMS(0xFF, PLAYER_INITMODE_B), &player->unk_3C0, player->unk_3CC);
@@ -418,34 +474,44 @@ void func_80A42AB8(EnTest4* this, PlayState* play) {
                 }
             }
 
-            if ((sCsIdList[this->csIdIndex] >= 0) && !(play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+            if ((sCsIdList[this->daytimeIndex] > CS_ID_NONE) && !(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
                 player->stateFlags1 |= PLAYER_STATE1_200;
-                this->unk_146 = gSaveContext.save.time;
+                this->prevTime = CURRENT_TIME;
             } else {
-                if (this->csIdIndex == 0) {
-                    this->csIdIndex = 1;
+                if (this->daytimeIndex == THREEDAY_DAYTIME_NIGHT) {
+                    this->daytimeIndex = THREEDAY_DAYTIME_DAY;
                 } else {
-                    this->csIdIndex = 0;
+                    this->daytimeIndex = THREEDAY_DAYTIME_NIGHT;
                 }
 
-                this->unk_146 = gSaveContext.save.time += CLOCK_TIME_MINUTE;
+                gSaveContext.save.time += CLOCK_TIME_MINUTE;
+                this->prevTime = CURRENT_TIME;
             }
-        } else if ((new_var * bellDiff) <= 0) {
-            Audio_PlaySfx_BigBells(&this->actor.projectedPos, TEST4_GET_BIG_BELLS_SFX_VOLUME_INDEX(&this->actor));
-            this->lastBellTime = gSaveContext.save.time;
+            return;
+        }
+
+        // When the bell sfx time is passed:
+        // `curTimeUntilBell` will be slightly positive (ahead bell time)
+        // `prevTimeUntilBell` will be slightly negative (behind bell time)
+        // Only when the signs are different will this condition pass
+        if ((curTimeUntilBell * prevTimeUntilBell) <= 0) {
+            Audio_PlaySfx_BigBells(&this->actor.projectedPos, THREEDAY_GET_BIG_BELLS_SFX_VOLUME_INDEX(&this->actor));
+            this->prevBellTime = CURRENT_TIME;
 
             if (CURRENT_DAY == 3) {
                 if ((this->nextBellTime == CLOCK_TIME(0, 0)) &&
                     ((gSaveContext.save.saveInfo.inventory.items[SLOT_OCARINA] == ITEM_NONE) ||
                      (play->sceneId == SCENE_CLOCKTOWER))) {
+                    // Initiate Clocktown day 3 midnight festival cutscene
                     s32 playerParams;
                     u32 entrance = gSaveContext.save.entrance;
 
-                    if ((play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+                    if (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) {
                         playerParams = PLAYER_PARAMS(0xFF, PLAYER_INITMODE_TELESCOPE);
                     } else {
                         playerParams = PLAYER_PARAMS(0xFF, PLAYER_INITMODE_B);
                     }
+
                     Play_SetRespawnData(&play->state, RESPAWN_MODE_RETURN, entrance, player->unk_3CE, playerParams,
                                         &player->unk_3C0, player->unk_3CC);
 
@@ -460,17 +526,17 @@ void func_80A42AB8(EnTest4* this, PlayState* play) {
                     player->stateFlags1 |= PLAYER_STATE1_200;
                     Actor_Kill(&this->actor);
                 }
-                func_80A42198(this);
+                EnTest4_GetBellTimeOnDay3(this);
             } else {
-                func_80A425E4(this, play);
+                EnTest4_GetBellTimeAndShrinkScreenBeforeDay3(this, play);
             }
         }
     }
 }
 
-void func_80A42F20(EnTest4* this, PlayState* play) {
+void EnTest4_HandleCutscene(EnTest4* this, PlayState* play) {
     if (!this->transitionCsTimer) {
-        if (sCurCsId >= 0) {
+        if (sCurCsId > CS_ID_NONE) {
             if (!CutsceneManager_IsNext(sCurCsId)) {
                 CutsceneManager_Queue(sCurCsId);
             } else {
@@ -483,7 +549,7 @@ void func_80A42F20(EnTest4* this, PlayState* play) {
     } else if (this->transitionCsTimer < 60) {
         this->transitionCsTimer++;
         if (this->transitionCsTimer == 10) {
-            if (this->csIdIndex == 0) {
+            if (this->daytimeIndex == THREEDAY_DAYTIME_NIGHT) {
                 Audio_PlaySfx(NA_SE_EV_CHICKEN_CRY_M);
             } else {
                 Audio_PlaySfx_2(NA_SE_EV_DOG_CRY_EVENING);
@@ -493,19 +559,19 @@ void func_80A42F20(EnTest4* this, PlayState* play) {
             Player* player = GET_PLAYER(play);
 
             gSaveContext.save.time += CLOCK_TIME_MINUTE;
-            this->unk_146 = gSaveContext.save.time;
+            this->prevTime = CURRENT_TIME;
             play->numSetupActors = -play->numSetupActors;
             player->stateFlags1 &= ~PLAYER_STATE1_200;
         }
     } else {
-        this->actionFunc = func_80A42AB8;
-        if (this->csIdIndex == 0) {
-            this->csIdIndex = 1;
+        this->actionFunc = EnTest4_HandleEvents;
+        if (this->daytimeIndex == THREEDAY_DAYTIME_NIGHT) {
+            this->daytimeIndex = THREEDAY_DAYTIME_DAY;
         } else {
-            this->csIdIndex = 0;
+            this->daytimeIndex = THREEDAY_DAYTIME_NIGHT;
         }
 
-        if (sCurCsId >= 0) {
+        if (sCurCsId > CS_ID_NONE) {
             CutsceneManager_Stop(sCurCsId);
         }
 
@@ -515,33 +581,27 @@ void func_80A42F20(EnTest4* this, PlayState* play) {
     }
 }
 
-void func_80A430C8(EnTest4* this, PlayState* play) {
-    if ((CURRENT_DAY == 2) && (gSaveContext.save.time >= CLOCK_TIME(7, 0)) &&
-        (gSaveContext.save.time < CLOCK_TIME(17, 30)) && (play->envCtx.precipitation[PRECIP_SNOW_CUR] == 0)) {
-        // rain?
-
-        gWeatherMode = WEATHER_MODE_1;
+void EnTest4_UpdateWeatherClear(EnTest4* this, PlayState* play) {
+    if ((CURRENT_DAY == 2) && (CURRENT_TIME >= CLOCK_TIME(7, 0)) && (CURRENT_TIME < CLOCK_TIME(17, 30)) &&
+        (play->envCtx.precipitation[PRECIP_SNOW_CUR] == 0)) {
+        gWeatherMode = WEATHER_MODE_RAIN;
         Environment_PlayStormNatureAmbience(play);
         play->envCtx.lightningState = LIGHTNING_ON;
         play->envCtx.precipitation[PRECIP_RAIN_MAX] = 60;
-    } else {
-        if (play->envCtx.precipitation[PRECIP_RAIN_MAX] != 0) {
-            if ((play->state.frames % 4) == 0) {
-                play->envCtx.precipitation[PRECIP_RAIN_MAX]--;
-                if ((play->envCtx.precipitation[PRECIP_RAIN_MAX]) == 8) {
-                    Environment_StopStormNatureAmbience(play);
-                }
-            }
+    } else if ((play->envCtx.precipitation[PRECIP_RAIN_MAX] != 0) && ((play->state.frames % 4) == 0)) {
+        play->envCtx.precipitation[PRECIP_RAIN_MAX]--;
+        if (play->envCtx.precipitation[PRECIP_RAIN_MAX] == 8) {
+            Environment_StopStormNatureAmbience(play);
         }
     }
 
-    if (gWeatherMode == WEATHER_MODE_1) {
-        this->state = TEST4_STATE_1;
+    if (gWeatherMode == WEATHER_MODE_RAIN) {
+        this->weather = THREEDAY_WEATHER_RAIN;
     }
 }
 
-void func_80A431C8(EnTest4* this, PlayState* play) {
-    if (((gSaveContext.save.time >= CLOCK_TIME(17, 30)) && (gSaveContext.save.time < CLOCK_TIME(23, 0)) &&
+void EnTest4_UpdateWeatherRainy(EnTest4* this, PlayState* play) {
+    if (((CURRENT_TIME >= CLOCK_TIME(17, 30)) && (CURRENT_TIME < CLOCK_TIME(23, 0)) &&
          (play->envCtx.precipitation[PRECIP_RAIN_MAX] != 0)) ||
         (play->envCtx.precipitation[PRECIP_SNOW_CUR] != 0)) {
         gWeatherMode = WEATHER_MODE_CLEAR;
@@ -549,12 +609,12 @@ void func_80A431C8(EnTest4* this, PlayState* play) {
     }
 
     if (gWeatherMode == WEATHER_MODE_CLEAR) {
-        this->state = TEST4_STATE_0;
+        this->weather = THREEDAY_WEATHER_CLEAR;
     }
 }
 
 void EnTest4_SetSkyboxNumStars(EnTest4* this, PlayState* play) {
-    s32 numStars = TEST4_GET_SKYBOX_NUM_STARS(&this->actor);
+    s32 numStars = THREEDAY_GET_SKYBOX_NUM_STARS(&this->actor);
 
     if (numStars > 0) {
         gSkyboxNumStars = numStars;
@@ -565,19 +625,26 @@ void EnTest4_Update(Actor* thisx, PlayState* play) {
     EnTest4* this = THIS;
     Player* player = GET_PLAYER(play);
 
-    if (!(player->stateFlags1 & PLAYER_STATE1_2)) {
-        this->actionFunc(this, play);
-
-        if (Environment_GetStormState(play) != STORM_STATE_OFF) {
-            switch (this->state) {
-                case TEST4_STATE_0:
-                    func_80A430C8(this, play);
-                    break;
-                case TEST4_STATE_1:
-                    func_80A431C8(this, play);
-                    break;
-            }
-        }
-        EnTest4_SetSkyboxNumStars(this, play);
+    if (player->stateFlags1 & PLAYER_STATE1_2) {
+        return;
     }
+
+    this->actionFunc(this, play);
+
+    if (Environment_GetStormState(play) != STORM_STATE_OFF) {
+        switch (this->weather) {
+            case THREEDAY_WEATHER_CLEAR:
+                EnTest4_UpdateWeatherClear(this, play);
+                break;
+
+            case THREEDAY_WEATHER_RAIN:
+                EnTest4_UpdateWeatherRainy(this, play);
+                break;
+
+            default:
+                break;
+        }
+    }
+
+    EnTest4_SetSkyboxNumStars(this, play);
 }
diff --git a/src/overlays/actors/ovl_En_Test4/z_en_test4.h b/src/overlays/actors/ovl_En_Test4/z_en_test4.h
index 2d6e5a6ff7..d83c7634f2 100644
--- a/src/overlays/actors/ovl_En_Test4/z_en_test4.h
+++ b/src/overlays/actors/ovl_En_Test4/z_en_test4.h
@@ -5,25 +5,31 @@
 
 struct EnTest4;
 
-#define TEST4_GET_SKYBOX_NUM_STARS(thisx) (((thisx)->params >> 10) * 100)
-#define TEST4_GET_BIG_BELLS_SFX_VOLUME_INDEX(thisx) (((thisx)->params >> 5) & 0xF)
+#define THREEDAY_GET_SKYBOX_NUM_STARS(thisx) (((thisx)->params >> 10) * 100)
+#define THREEDAY_GET_BIG_BELLS_SFX_VOLUME_INDEX(thisx) (((thisx)->params >> 5) & 0xF)
 
 typedef void (*EnTest4ActionFunc)(struct EnTest4*, PlayState*);
 
+typedef enum ThreeDayDaytime {
+    /* 0 */ THREEDAY_DAYTIME_NIGHT,
+    /* 1 */ THREEDAY_DAYTIME_DAY,
+    /* 2 */ THREEDAY_DAYTIME_MAX
+} ThreeDayDaytime;
+
 typedef struct EnTest4 {
     /* 0x000 */ Actor actor;
-    /* 0x144 */ s8 csIdIndex; // 0 on night, 1 on day
+    /* 0x144 */ s8 daytimeIndex; // See `ThreeDayDaytime`
     /* 0x145 */ u8 transitionCsTimer;
-    /* 0x146 */ u16 unk_146;
+    /* 0x146 */ u16 prevTime;
     /* 0x148 */ u16 nextBellTime; // Next time the bell will sound
-    /* 0x14A */ u16 lastBellTime; // Last time the bell sounded
-    /* 0x14C */ u8 state;
+    /* 0x14A */ u16 prevBellTime; // Last time the bell sounded
+    /* 0x14C */ u8 weather; // See `ThreeDayWeather`
     /* 0x150 */ EnTest4ActionFunc actionFunc;
 } EnTest4; // size = 0x154
 
-typedef enum {
-    /* 0 */ TEST4_STATE_0,
-    /* 1 */ TEST4_STATE_1
-} EnTest4State;
+typedef enum ThreeDayWeather {
+    /* 0 */ THREEDAY_WEATHER_CLEAR,
+    /* 1 */ THREEDAY_WEATHER_RAIN
+} ThreeDayWeather;
 
 #endif // Z_EN_TEST4_H
diff --git a/src/overlays/actors/ovl_En_Test6/z_en_test6.c b/src/overlays/actors/ovl_En_Test6/z_en_test6.c
index 3601bb9e02..dc6e837d04 100644
--- a/src/overlays/actors/ovl_En_Test6/z_en_test6.c
+++ b/src/overlays/actors/ovl_En_Test6/z_en_test6.c
@@ -822,7 +822,7 @@ void EnTest6_DoubleSoTCutscene(EnTest6* this, PlayState* play) {
 
         case 1:
             EnTest6_DisableMotionBlur();
-            if (CHECK_EVENTINF(EVENTINF_52)) {
+            if (CHECK_EVENTINF(EVENTINF_HAS_DAYTIME_TRANSITION_CS)) {
                 this->cueId = SOTCS_CUEID_DOUBLE_END;
             }
             break;
diff --git a/src/overlays/actors/ovl_En_Weather_Tag/z_en_weather_tag.c b/src/overlays/actors/ovl_En_Weather_Tag/z_en_weather_tag.c
index 37f80d372c..513a57d2ea 100644
--- a/src/overlays/actors/ovl_En_Weather_Tag/z_en_weather_tag.c
+++ b/src/overlays/actors/ovl_En_Weather_Tag/z_en_weather_tag.c
@@ -359,7 +359,7 @@ void func_80966FEC(EnWeatherTag* this, PlayState* play) {
         gSkyboxNumStars = numStars;
     }
 
-    if ((play->sceneId == SCENE_KAIZOKU) && (play->actorCtx.flags & ACTORCTX_FLAG_1)) {
+    if ((play->sceneId == SCENE_KAIZOKU) && (play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON)) {
         EnWeatherTag_SetupAction(this, func_80967060);
     }
 }
@@ -459,7 +459,7 @@ void func_809674C8(EnWeatherTag* this, PlayState* play) {
             if ((gSaveContext.save.time >= CLOCK_TIME(7, 0)) && (gSaveContext.save.time < CLOCK_TIME(17, 30)) &&
                 (play->envCtx.precipitation[PRECIP_SNOW_CUR] == 0)) {
 
-                gWeatherMode = WEATHER_MODE_1;
+                gWeatherMode = WEATHER_MODE_RAIN;
                 Environment_PlayStormNatureAmbience(play);
                 play->envCtx.precipitation[PRECIP_SOS_MAX] = 32;
                 EnWeatherTag_SetupAction(this, func_80967608);
@@ -488,7 +488,7 @@ void EnWeatherTag_Update(Actor* thisx, PlayState* play) {
     EnWeatherTag* this = THIS;
 
     this->actionFunc(this, play);
-    if ((play->actorCtx.flags & ACTORCTX_FLAG_1) && (play->msgCtx.msgMode != MSGMODE_NONE) &&
+    if ((play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) && (play->msgCtx.msgMode != MSGMODE_NONE) &&
         (play->msgCtx.currentTextId == 0x5E6) && !FrameAdvance_IsEnabled(&play->state) &&
         (play->transitionTrigger == TRANS_TRIGGER_OFF) && (CutsceneManager_GetCurrentCsId() == CS_ID_NONE) &&
         (play->csCtx.state == CS_STATE_IDLE)) {
diff --git a/src/overlays/actors/ovl_Obj_Tokeidai/z_obj_tokeidai.c b/src/overlays/actors/ovl_Obj_Tokeidai/z_obj_tokeidai.c
index 07a75650b2..4681bd07a7 100644
--- a/src/overlays/actors/ovl_Obj_Tokeidai/z_obj_tokeidai.c
+++ b/src/overlays/actors/ovl_Obj_Tokeidai/z_obj_tokeidai.c
@@ -700,7 +700,7 @@ void ObjTokeidai_TowerClock_Idle(ObjTokeidai* this, PlayState* play) {
         this->clockTime += 3;
         this->actor.draw = ObjTokeidai_Clock_Draw;
     } else {
-        if (!(play->actorCtx.flags & ACTORCTX_FLAG_1) &&
+        if (!(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) &&
             (OBJ_TOKEIDAI_TYPE(&this->actor) == OBJ_TOKEIDAI_TYPE_TOWER_CLOCK_TERMINA_FIELD) &&
             (CutsceneManager_GetCurrentCsId() == CS_ID_NONE)) {
             this->actor.draw = NULL;
@@ -733,7 +733,7 @@ void ObjTokeidai_ExteriorGear_Idle(ObjTokeidai* this, PlayState* play) {
             this->clockTime += 3;
             this->actor.draw = ObjTokeidai_ExteriorGear_Draw;
         } else {
-            if (!(play->actorCtx.flags & ACTORCTX_FLAG_1) &&
+            if (!(play->actorCtx.flags & ACTORCTX_FLAG_TELESCOPE_ON) &&
                 (OBJ_TOKEIDAI_TYPE(&this->actor) == OBJ_TOKEIDAI_TYPE_EXTERIOR_GEAR_TERMINA_FIELD) &&
                 (CutsceneManager_GetCurrentCsId() == CS_ID_NONE)) {
                 this->actor.draw = NULL;
diff --git a/src/overlays/actors/ovl_player_actor/z_player.c b/src/overlays/actors/ovl_player_actor/z_player.c
index 40790fe654..1a1983b864 100644
--- a/src/overlays/actors/ovl_player_actor/z_player.c
+++ b/src/overlays/actors/ovl_player_actor/z_player.c
@@ -8291,7 +8291,7 @@ void Player_InitMode_Telescope(PlayState* play, Player* this) {
         this->actor.focus.rot.y = 0x2102;
         this->av2.actionVar2 = 20;
     }
-    play->actorCtx.flags |= ACTORCTX_FLAG_1;
+    play->actorCtx.flags |= ACTORCTX_FLAG_TELESCOPE_ON;
 }
 
 void Player_InitMode_B(PlayState* play, Player* this) {
diff --git a/src/overlays/gamestates/ovl_file_choose/z_file_choose_NES.c b/src/overlays/gamestates/ovl_file_choose/z_file_choose_NES.c
index fa1edaf6bc..4f736a3178 100644
--- a/src/overlays/gamestates/ovl_file_choose/z_file_choose_NES.c
+++ b/src/overlays/gamestates/ovl_file_choose/z_file_choose_NES.c
@@ -2489,7 +2489,7 @@ void FileSelect_InitContext(GameState* thisx) {
     envCtx->lightConfig = 0;
     envCtx->changeLightNextConfig = 0;
     envCtx->lightSetting = 0;
-    envCtx->skyboxConfig = 2;
+    envCtx->skyboxConfig = SKYBOX_CONFIG_2;
     envCtx->skyboxDisabled = 0;
     envCtx->skyboxBlend = 0;
     envCtx->glareAlpha = 0.0f;
diff --git a/tools/disasm/functions.txt b/tools/disasm/functions.txt
index 96f0784a01..36f6b0a598 100644
--- a/tools/disasm/functions.txt
+++ b/tools/disasm/functions.txt
@@ -1786,7 +1786,7 @@
     0x800FEA50:("func_800FEA50",),
     0x800FEAB0:("func_800FEAB0",),
     0x800FEAC0:("Environment_JumpForwardInTime",),
-    0x800FEAF4:("func_800FEAF4",),
+    0x800FEAF4:("Environment_NewDay",),
     0x800FEC90:("Lib_MemCpy",),
     0x800FECC0:("Lib_MemSet",),
     0x800FED44:("Math_CosS",),
@@ -10402,16 +10402,16 @@
     0x80A40CF0:("func_80A40CF0",),
     0x80A40F34:("func_80A40F34",),
     0x80A4129C:("func_80A4129C",),
-    0x80A41D70:("func_80A41D70",),
-    0x80A41FA4:("func_80A41FA4",),
-    0x80A42198:("func_80A42198",),
-    0x80A425E4:("func_80A425E4",),
+    0x80A41D70:("EnTest4_HandleDayNightSwapFromInit",),
+    0x80A41FA4:("EnTest4_HandleDayNightSwap",),
+    0x80A42198:("EnTest4_GetBellTimeOnDay3",),
+    0x80A425E4:("EnTest4_GetBellTimeAndShrinkScreenBeforeDay3",),
     0x80A427E8:("EnTest4_Init",),
     0x80A42AA8:("EnTest4_Destroy",),
-    0x80A42AB8:("func_80A42AB8",),
-    0x80A42F20:("func_80A42F20",),
-    0x80A430C8:("func_80A430C8",),
-    0x80A431C8:("func_80A431C8",),
+    0x80A42AB8:("EnTest4_HandleEvents",),
+    0x80A42F20:("EnTest4_HandleCutscene",),
+    0x80A430C8:("EnTest4_UpdateWeatherClear",),
+    0x80A431C8:("EnTest4_UpdateWeatherRainy",),
     0x80A4323C:("EnTest4_SetSkyboxNumStars",),
     0x80A43274:("EnTest4_Update",),
     0x80A434E0:("EnBat_Init",),
diff --git a/tools/disasm/variables.txt b/tools/disasm/variables.txt
index e9cffb7360..961b7c3fbf 100644
--- a/tools/disasm/variables.txt
+++ b/tools/disasm/variables.txt
@@ -3866,7 +3866,7 @@
     0x801F4E10:("sNextCutsceneList","u8","[16]",0x10),
     0x801F4E20:("D_801F4E20","UNK_TYPE1","",0x1),
     0x801F4E30:("D_801F4E30","UNK_TYPE1","",0x1),
-    0x801F4E31:("D_801F4E31","UNK_TYPE1","",0x1),
+    0x801F4E31:("sInitSkyboxConfig","UNK_TYPE1","",0x1),
     0x801F4E32:("gCustomLensFlare1On","UNK_TYPE1","",0x1),
     0x801F4E38:("gCustomLensFlare1Pos","UNK_TYPE1","",0x1),
     0x801F4E3C:("D_801F4E3C","UNK_TYPE1","",0x1),
@@ -11305,11 +11305,11 @@
     0x80A41D6C:("sKafeiCurBodyPartPos","UNK_TYPE1","",0x1),
     0x80A43320:("En_Test4_InitVars","ActorInit","",0x20),
     0x80A43340:("sIsLoaded","s32","[3]",0x6),
-    0x80A43342:("sNightMessages1","s16","[3]",0x6),
-    0x80A4334A:("sDayMessages1","s16","[3]",0x6),
-    0x80A43352:("sNightMessages2","s16","[3]",0x6),
-    0x80A4335A:("sDayMessages2","s16","[3]",0x6),
-    0x80A43364:("D_80A43364","u16","[2]",0x4),
+    0x80A43342:("sNightOfTextIds2","s16","[3]",0x6),
+    0x80A4334A:("sDawnOfTextIds2","s16","[3]",0x6),
+    0x80A43352:("sNightOfTextIds","s16","[3]",0x6),
+    0x80A4335A:("sDawnOfTextIds","s16","[3]",0x6),
+    0x80A43364:("sDayNightTransitionTimes","u16","[2]",0x4),
     0x80A434D0:("sCsIdList","s16","[2]",0x4),
     0x80A434D4:("sCurCsId","s16","",0x2),
     0x80A449E0:("En_Bat_InitVars","ActorInit","",0x1),
diff --git a/tools/namefixer.py b/tools/namefixer.py
index a5e7c755c1..8384a8af38 100755
--- a/tools/namefixer.py
+++ b/tools/namefixer.py
@@ -1291,6 +1291,7 @@ wordReplace = {
     "RADF_TO_DEGF": "RAD_TO_DEG",
     "DEGF_TO_RADF": "DEG_TO_RAD",
 
+    "ACTORCTX_FLAG_1": "ACTORCTX_FLAG_TELESCOPE_ON",
     "ACTORCTX_FLAG_2": "ACTORCTX_FLAG_PICTO_BOX_ON",
 
     "ACTOR_FLAG_1": "ACTOR_FLAG_TARGETABLE",
diff --git a/tools/sizes/code_functions.csv b/tools/sizes/code_functions.csv
index 88e9931a60..b441b2f4c0 100644
--- a/tools/sizes/code_functions.csv
+++ b/tools/sizes/code_functions.csv
@@ -1300,7 +1300,7 @@ asm/non_matchings/code/z_kankyo/func_800FE9B4.s,func_800FE9B4,0x800FE9B4,0x27
 asm/non_matchings/code/z_kankyo/func_800FEA50.s,func_800FEA50,0x800FEA50,0x18
 asm/non_matchings/code/z_kankyo/func_800FEAB0.s,func_800FEAB0,0x800FEAB0,0x4
 asm/non_matchings/code/z_kankyo/Environment_JumpForwardInTime.s,Environment_JumpForwardInTime,0x800FEAC0,0xD
-asm/non_matchings/code/z_kankyo/func_800FEAF4.s,func_800FEAF4,0x800FEAF4,0x67
+asm/non_matchings/code/z_kankyo/Environment_NewDay.s,Environment_NewDay,0x800FEAF4,0x67
 asm/non_matchings/code/z_lib/Lib_MemCpy.s,Lib_MemCpy,0x800FEC90,0xC
 asm/non_matchings/code/z_lib/Lib_MemSet.s,Lib_MemSet,0x800FECC0,0x21
 asm/non_matchings/code/z_lib/Math_CosS.s,Math_CosS,0x800FED44,0x10