This Sunday most U.S. residents will gain an hour of daylight as it’s time to spring forward. Few people will likely wake up exactly at 2:00 a.m. local time to move the clock hand, or dial, forward an hour. But that’s when daylight saving time officially begins on the second Sunday in March. It ends on the first Sunday in November, when clocks are turned back at 2:00 a.m. local time to read 1:00 a.m. That is, for everyone except those who live in Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands, and by most of Arizona, with the exception of the Navajo Nation. Why two o’clock? 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, according to the WebExhibits, an online museum. Turning clocks back in the fall could mean an extra hour at bars, which tend […]