Chuckling, @johnbishop, because I've been guilty of showing up an hour early more than once. Luckily, not yet an hour late but since my smart phone is so much smarter than me and there are very few appts on my calendar now, I rely on my computer some days to tell me the date so I can then check the day of the week on a handy nearby calendar.

Like you, I don't suffer much from the time changes but do keep all house lights on more during the winter season because more light improves my spirits.