#Daylightsavingtime #FallBack #Sleep, #DST Daylight saving time ends on Sunday, at 2 a.m. — the official hour to set all of our clocks back to standard time. But most of us will probably "fall back" before we go to bed Saturday night. That's unless you reside in the states of Arizona (except the Navajo Nation) or Hawaii. Or the U.S. territories of American Samoa, Guam, Puerto Rico, and the Virgin Islands do not observe daylight saving time. On the bright side, we gain an extra hour of sleep. But many 9-to-5 office workers face a dark side too: Not seeing much daylight on weekdays until next spring. Here are seven things to know about daylight saving time : 1.) It's not plural. First things first. It's daylight saving time not saving's or savings time. It's singular. 2.) When is it exactly? Since 2007, daylight saving time begins on the second Sunday of March and ends on the first Sunday of November. Previously, it had started on th