The Weekly_Schedule property of a BACnet Schedule object stores Time/Value pairs for each of the seven days of the week (Monday to Sunday), allowing differentiated programmes between weekdays and weekend.

Weekly_Schedule is an Array[7] of DailySchedule, one entry per day, and each DailySchedule is a list of Time/Value pairs. The Time field uses HH:MM:SS:Hundredths (resolution down to 10 ms), and the Value field carries the appropriate type (Binary, Analog, Multistate). A typical office lighting programme might therefore set Monday-Friday to ON at 07:00 and OFF at 19:00, and OFF all day on Saturday-Sunday; one-off exceptions go into Exception_Schedule together with a Calendar object.

When the schedule fails to write at the expected minute, check the controller's local time-zone and DST settings first: BACnet Time values are interpreted in the device's local time, not UTC.