diff --git a/src/main/java/com/gregtechceu/gtceu/GTCEu.java b/src/main/java/com/gregtechceu/gtceu/GTCEu.java
index b834dccf3b0..bc2b67da67e 100644
--- a/src/main/java/com/gregtechceu/gtceu/GTCEu.java
+++ b/src/main/java/com/gregtechceu/gtceu/GTCEu.java
@@ -193,10 +193,6 @@ public static boolean isModernFixLoaded() {
             return isModLoaded(GTValues.MODID_MODERNFIX);
         }
 
-        public static boolean isJAVDLoaded() {
-            return isModLoaded(GTValues.MODID_JAVD);
-        }
-
         public static boolean isFTBTeamsLoaded() {
             return isModLoaded(GTValues.MODID_FTB_TEAMS);
         }
diff --git a/src/main/java/com/gregtechceu/gtceu/api/GTValues.java b/src/main/java/com/gregtechceu/gtceu/api/GTValues.java
index 9307c1f4d1e..0fd0123f1f1 100644
--- a/src/main/java/com/gregtechceu/gtceu/api/GTValues.java
+++ b/src/main/java/com/gregtechceu/gtceu/api/GTValues.java
@@ -125,7 +125,6 @@ public static int[] tiersBetween(int minInclusive, int maxInclusive) {
             MODID_XAEROS_MINIMAP = "xaerominimap",
             MODID_XAEROS_WORLDMAP = "xaeroworldmap",
             MODID_FTB_CHUNKS = "ftbchunks",
-            MODID_JAVD = "javd",
             MODID_FTB_TEAMS = "ftbteams",
             MODID_ARGONAUTS = "argonauts",
             MODID_HERACLES = "heracles",
diff --git a/src/main/java/com/gregtechceu/gtceu/utils/GTUtil.java b/src/main/java/com/gregtechceu/gtceu/utils/GTUtil.java
index 72fe4b221e5..665cb880b70 100644
--- a/src/main/java/com/gregtechceu/gtceu/utils/GTUtil.java
+++ b/src/main/java/com/gregtechceu/gtceu/utils/GTUtil.java
@@ -21,7 +21,6 @@
 import net.minecraft.core.Direction;
 import net.minecraft.core.Holder;
 import net.minecraft.core.registries.BuiltInRegistries;
-import net.minecraft.core.registries.Registries;
 import net.minecraft.nbt.CompoundTag;
 import net.minecraft.nbt.Tag;
 import net.minecraft.network.chat.Component;
@@ -510,22 +509,23 @@ public static boolean canSeeSunClearly(Level world, BlockPos blockPos) {
             return false;
         }
 
-        Biome biome = world.getBiome(blockPos.above()).value();
+        Holder<Biome> biome = world.getBiome(blockPos.above());
         if (world.isRaining()) {
-            if (biome.warmEnoughToRain(blockPos.above()) || biome.coldEnoughToSnow(blockPos.above())) {
+            if (biome.value().warmEnoughToRain(blockPos.above()) || biome.value().coldEnoughToSnow(blockPos.above())) {
                 return false;
             }
         }
 
-        if (world.getBiome(blockPos.above()).is(BiomeTags.IS_END)) {
+        if (biome.is(BiomeTags.IS_END)) {
             return false;
         }
 
-        ResourceLocation javdVoidBiome = new ResourceLocation("javd", "void");
-        if (GTCEu.Mods.isJAVDLoaded() &&
-                world.registryAccess().registryOrThrow(Registries.BIOME).getKey(biome).equals(javdVoidBiome)) {
-            return !world.isDay();
-        } else return world.isDay();
+        // skip the fixed time check Level.isDay() does
+
+        // skyDarken is the amount of light subtracted from the stored skylight value in
+        // `Level.getMaxLocalRawBrightness(pos)` depending on the time of day.
+        // this here is the same code Level.isDay() uses to determine whether it's day or not.
+        return world.getSkyDarken() < 4;
     }
 
     /**