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
OR:
Set Threshold value and leave the Minimum threshold limit and Maximum threshold limit blank. This value will be locked and cannot be modified in the user interface.