The Standard Time Act of 1918 was the first law to implement standard and daylight saving times at the federal level.

While the standard time in time zones remained in law, daylight time became a local matter. It was returned nationally during World War II for three years. After that, Daylight Saving Time varied ...

In order to correct confusing and alternating time zones, the Uniform Time Act of 1966 sought a nationwide standard for ...

Daylight saving time begins on Sunday, March 9, meaning most Americans will lose an hour of sleep as we "spring forward." ...

Most Americans should consider going to bed early Saturday night, because they are about to lose an hour of sleep. Daylight saving time is imminent, meaning that on Sunday, 2 a.m. will become 3 a ...