One time schedule events?

I was wondering if there was a way to do a one time scheduled event? Like our house in night mode at 11:30… Or unlock this door at 9:00 am ? With all of my home automation set up for the habits of the family, and then with all people staying over for the holiday weekend it would be nice to just schedule an action, whether it was a mode change or light on or off, or something else.

Is that possible?