This object is a bitmap of the 60 minutes in an hour (m0-m59) specifying exactly which minute a calendar schedule entry may trigger. Combined with schedHour, schedDay, schedMonth and schedWeekDay, it pins the scheduled action to a precise minute rather than any time within the hour. For example, setting only bit m0 makes the action fire at the top of each qualifying hour, like 2:00 rather than any time between 2:00 and 2:59.