Custodian Ray Keen changes the time on the clock atop the Clay County Courthouse in Kansas. (AP Photo/Charlie Riedel)

At 2 a.m. on Sunday, Daylight Savings Time begins, meaning that most Americans — including locals in the Eastern time zone — will need to change their clocks to an hour ahead either Sunday morning or Saturday night, “losing” an hour. For nearly 20 years, the annual ritual of moving clocks an hour ahead has taken place on the second Sunday of March. This year’s Daylight Savings Time will end when clocks “fall back” on the first Sunday of November. Read about how people love to hate the time change on page A2.