diff --git a/main.go b/main.go
index 1e43345..fd60b0c 100644
--- a/main.go
+++ b/main.go
@@ -209,6 +209,8 @@ func scheduleTimetableUpdate() {
 
 				// Get current date to filter out new day changes
 				today := time.Now().Format("02-01-2006")
+				// Get current time to filter any changes to Timetable before 3am so the new day changes stop
+				now := time.Now()
 
 				for _, e := range currentEntries {
 					key := lessonKey(e)
@@ -227,6 +229,9 @@ func scheduleTimetableUpdate() {
 					if curr.Date != today {
 						continue
 					}
+					if now.Hour() < 3 {
+						continue
+					}
 
 					if prev, exists := prevMap[key]; exists {
 						// Existing lesson — check for changes