How do scheduled tasks work?

Two kinds of schedule

1. 1
   Posts and ad changes

   Say the time in the request. The card shows Publishes. Approve & schedule, or Publish now instead.

2. 2
   Site merges

   Wait for Ready for review and a pull request. Next to Merge to Main, Schedule merge for later asks for a date and time.

3. 3
   Cancel

   Settings → Scheduled lists what is waiting. Cancel is on pending rows. A revised plan cancels the old schedule.