For states that observe daylight saving time ... in the Central Time zone), 4 p.m. in Colorado (which is in the Mountain Time zone), and 3 p.m. in California (which is in the Pacific Time zone).

WASHINGTON — In just a few days, millions of Americans will lose an hour of sleep as daylight saving time begins. Starting Sunday, Mar. 9, clocks around the U.S. will "spring forward" an hour at ...