Did you know that while most states observe the spring forward / fall back switch in time, Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, the Commonwealth of Northern Mariana Islands, and Arizona do not change the clock.

However, the Navajo Nation in Arizona does participate in daylight saving time and will roll the clock back Sunday. The Hopi Reservation, entirely surrounded by the Navajo Nation, does not observe daylight saving time, creating a “donut hole” in time in the middle of Arizona.