Celery supports solar scheduling, though it's not obvious how you would do +/- some time from the solar event. You would probably need to extend their implement

Celery supports solar scheduling, though it's not obvious how you would do +/- some time from the solar event. You would probably need to extend their implementation, but I don't think that would be too hard. https://docs.celeryq.dev/en/stable/reference/celery.schedules.html#celery.schedules.solar https://docs.celeryq.dev/en/stable/reference/celery.schedule... EDIT: I think you just need to provide a nowfun that offsets datetime.now() by the desired timedelta.