Tardiness Problem

I set our Workdays start at 9:00 am & Mark as Tardy, when First Check In is later than Start time for more than 30 minutes. But all records were remark as Tardiness even First check in before 9:00 or 9:30 am.
Need help on this, many thanks!

@kapchew please help us

Sorry that I am not able to provide hand holding user training. You may visit the online user guide to understand how it works.