Yes!! When Taz was with me he always woke me up around 5am (which is my normal weekday schedule) to be fed, even on weekends. With time changes he still woke me up at the regular 5am time for a few days.

The dogs wake me up around 7am on weekends (Bruce feeds them during the week) to be fed. With time changes they still wake me up the first day at the old time. Again, it takes them a while to get on the new schedule.