If you want to schedule when a job should be started, you need to include the planned start time. The following example shows a job that is planned to start at 08:30 UTC on Oct 22nd 2020.
<planned_start_at>2020-10-22T08:30:00+00:00</planned_start_at>Note that the planned start at is defined in local time by adding the UTC offset to the end of the timestamp. In the example below, this is +13:00.
<planned_start_at>2019-12-22T10:15:00+13:00</planned_start_at>