The system administrator can select any one of the following options, available in the left pane:
To disable a specific day, set all the hour and minute fields in that template to 0 (zero).
To configure Start Time for the day:
Set Hours: 0-23
Set Minutes: 0, 15, 30, 45
To configure End Time for the day:
Set Hours: 0-23
Set Minutes: 0, 15, 30, 45