This read-only Gauge32 value specifies the minute within the start hour at which a recurring maintenance window that fires jobs on a repeating day/hour/minute pattern instead of a single date begins. An administrator uses this together with the hour value to pin down the precise start time of the recurring maintenance activity. For example, when a maintenance task is configured to run every Sunday night rather than on a single calendar date, this minute value would confirm the window starts precisely at, say, 11:30 rather than on the hour.