Daylight Saving Time (DST) begins on the second Sunday in March at 2 a.m. Advancing our clocks an hour helps line up the daylight hours with the times of day when most people are awake and busy.
Part of the goal of DST is to save energy by encouraging people to be outside during these warmer months rather than inside and using lights and TVs and other energy-sucking appliances.
Research has yet to show conclusively that DST actually saves a noteworthy amount of energy. However, two studies show that DST reduces automobile crashes significantly, saving lives and money every year, which was an unexpected benefit.
If you live in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, and the parts of Arizona that are not the Navajo Reservation, you don’t have to worry about changing your clocks. Those places don’t observe Daylight Saving Time.
Daylight Saving Time ends on the second Sunday in November at 2 a.m. The rest of the year is called Standard Time.
Learn more about Daylight Saving Time and don’t forget to change your clocks this weekend.