@tsyum@thepit.social Huh... It's indeed missing in shortcuts. Anyway, as for ideas, you can set an alarm clock (you can name those and they can be a one time thing), or create a reminder, or add an activity to the agenda. It's a bit more complex and limited since you need to calculate the time you want it to go off. I checked the reminder-solution, and that one does allow precision on seconds (or at least it stores it as such)