Hello, This feature used to work but I'm not sure what changed with the new update.  The past dates are blocked as it should but the time still showed the entire availability of the schedule.  Currently it is 6:11 PM and I can still book a slot at 10 AM in the morning.  My time set on WP is set to -7 UTC which is PDT timezone.  Is there anything else I need to check to fix this issue? Thank you for the great tool!