weekly
The day and time of the week to start weekly maintenance updates of your environment in the following format: DAY:HH:MM . For example: TUE:03:30 . You can specify a start time in 30 minute increments only. Supported input includes the following:
MON|TUE|WED|THU|FRI|SAT|SUN:(01\\d|20-3):(00|30)