Vacation can shift your clock forward in the same way a late night does. If you stayed up far later than usual and your body now wants to sleep and wake later, the recovery strategy is similar. Use this plan for fixing your sleep schedule after staying up all night, then keep the wake time steady so the rhythm holds.
If your schedule has been off for longer than a vacation, this guide on how to get back on a sleep schedule walks you through a full 7-day reset.