Daylight-saving time went into effect at 2 a.m. Sunday, when the
time took a one-hour leap forward. Daylight-saving time begins
on the second Sunday of March, when clocks “spring forward” by
an hour, and it ends on the first Sunday of November, when they
“fall back” by an hour. Residents of some states don’t have to
worry about the switch, including Hawaii and most of Arizona.
Those states remain on standard time year-round, along with
American Samoa, Guam, the Northern Marianas and the Virgin
Islands. Standard time will return for the rest of us on Nov. 3
when we “fall back” and gain an hour of sleep. As people make
the change to their clocks, meanwhile, fire departments are
reminding everyone to use the opportunity to check the batteries
in smoke alarms and carbon-monoxide detectors.