Daylight Savings Time is not a universal. And here is a list of notable exceptions.
Arizona wins the prize:
- Even though Arizona does not observe Daylight Saving Time, the Navajo Indian Reservation (which takes up most of northeastern AZ) does observe DST. To add to the confusion, the Hopi Indian Reservation, which is wholly enclosed within the Navajo Reservation, does NOT observe DST. Confused? We're just getting started.
- Consider also that the Navajos have an enclave containing the village of Jeddito, entirely within the Hopi reservation. And that the Hopi reservation has an exclave at Moenkopi, just south of Tuba City. Still not confused?
- Some of the businesses in Tuba city (within the Navajo Reservation) reportedly do not observe Daylight Saving time, so as to avoid confusing the tourists. Good luck with that. At least that puts them in semi-sync with their Hopi neighbors across highway 160 in Moenkopi. Got it?
- On the map, the Moenkopi Hopi exclave borders are defined as provided by the Microsoft Streets and Trips data, which I believe comes from Navteq. It is possible that this map from nationalatlas.com - which shows a much larger exclave - is more accurate, but it doesn't come with usable lat/lon data I can use to draw the borders.
- There is a small Navajo exclave south of the main reservation, just inside the AZ border with NM. Three miles of Hwy61 runs through it, but it looks as if there are no businesses, residences, or other significant through roads crossing this stretch, so to avoid adding to an already confused situation, I left that off the map.