This weekend on Sunday morning at “2AM” most of the nation will set their clocks forward to “3AM.” We’ll all be “springing forward!” Of course, not everyone will do this. Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, and most of Arizona, with the exception of the Navajo Nation, will remain on Standard Time (see footnote for the history of Daylight Savings Time).
Why two o’clock in the morning? The thinking goes it’s late enough that most people would be at home, with few bars and restaurants being affected. In addition, it prevented the date from switching to yesterday; it would be confusing if, say, we changed the clocks at midnight back to 11 p.m. The time is also early enough that the clock-hand change occurs before early shift workers and early churchgoers might be impacted.
Personally, I think 2PM would be a better time!
[Source: Why Does Daylight Saving Time Begin at 2 a.m.? By Live Science Staff]
Daylight saving time has a rocky past. Established in the United States in 1918, daylight saving time was a contentious matter and was repealed in 1919. The standardized clock changes, however, were re-established nationally early in World War II and observed from Feb. 9, 1942 through Sept. 30, 1945.
After the war, U.S. states were free to choose whether to observe daylight savings time and if they did, the calendar start dates of the time change. The result was time confusion for travelers and newscasters. In 1966, Congress enacted the Uniform Time Act, which stated that if any state observed daylight saving time, it had to follow a uniform protocol, beginning and ending on the same dates throughout the country.
The start and end dates have changed over the years, with the most recent change in 2007 setting the start date on the second Sunday in March and end date on the first Sunday in November – adding four weeks to the total stint compared with years prior.