diff --git a/source/funkin/input/PreciseInputManager.hx b/source/funkin/input/PreciseInputManager.hx
index 11a3c2007..7e6a6569b 100644
--- a/source/funkin/input/PreciseInputManager.hx
+++ b/source/funkin/input/PreciseInputManager.hx
@@ -28,10 +28,6 @@ class PreciseInputManager extends FlxKeyManager<FlxKey, PreciseInputList>
     return instance ?? (instance = new PreciseInputManager());
   }
 
-  static final MS_TO_US:Int64 = 1000;
-  static final US_TO_NS:Int64 = 1000;
-  static final MS_TO_NS:Int64 = MS_TO_US * US_TO_NS;
-
   static final DIRECTIONS:Array<NoteDirection> = [NoteDirection.LEFT, NoteDirection.DOWN, NoteDirection.UP, NoteDirection.RIGHT];
 
   public var onInputPressed:FlxTypedSignal<PreciseInputEvent->Void>;
@@ -101,11 +97,11 @@ class PreciseInputManager extends FlxKeyManager<FlxKey, PreciseInputList>
     // NOTE: This timestamp isn't that precise on standard HTML5 builds.
     // This is because of browser safeguards against timing attacks.
     // See https://web.dev/coop-coep to enable headers which allow for more precise timestamps.
-    return js.Browser.window.performance.now() * MS_TO_NS;
+    return haxe.Int64.fromFloat(js.Browser.window.performance.now() * Constants.NS_PER_MS);
     #elseif cpp
     // NOTE: If the game hard crashes on this line, rebuild Lime!
     // `lime rebuild windows -clean`
-    return lime._internal.backend.native.NativeCFFI.lime_sdl_get_ticks() * MS_TO_NS;
+    return lime._internal.backend.native.NativeCFFI.lime_sdl_get_ticks() * Constants.NS_PER_MS;
     #else
     throw "Eric didn't implement precise timestamps on this platform!";
     #end
@@ -176,7 +172,7 @@ class PreciseInputManager extends FlxKeyManager<FlxKey, PreciseInputList>
 
     // TODO: Remove this line with SDL3 when timestamps change meaning.
     // This is because SDL3's timestamps are measured in nanoseconds, not milliseconds.
-    timestamp *= MS_TO_NS;
+    timestamp *= Constants.NS_PER_MS;
 
     updateKeyStates(key, true);
 
@@ -198,7 +194,7 @@ class PreciseInputManager extends FlxKeyManager<FlxKey, PreciseInputList>
 
     // TODO: Remove this line with SDL3 when timestamps change meaning.
     // This is because SDL3's timestamps are measured in nanoseconds, not milliseconds.
-    timestamp *= MS_TO_NS;
+    timestamp *= Constants.NS_PER_MS;
 
     updateKeyStates(key, false);