Time of departure auto-enter
I'm building a small database for a Horse back riding rally. When creating the team record, i would like the time of departure to auto enter. Such as: First team, first record, Departure at 09.00 and 13.00 (European time). Second team, second record, departure at 09.05 and 13.05. Third record, departure 09.10 and 13.10. And so on. Between each departure there is a 5 minutes delay. How can I do this.
Thank you for your help.