You can go to your Appointments/Queue page by clicking here.
You can click the + button and select Add Day Off
This would let you enter a date or a date range of when you will not be accepting any new bookings or will not be holding clinic.
Option 2: Blocking Philippine Non-Working Holidays Automatically.
You can click the Gear icon
Then select Block PH Non-Working Holidays
After turning this on, those dates will all be blocked off.