Despite sleep experts -- and the president -- wanting to eliminate time changes, daylight saving time is about to begin again.

It wasn't until the passing of the Uniform Time Act of 1966 that daylight saving became permanent, which established time zones across the country. The act stated that clocks would advance by one hour at 2 a.m. on the last Sunday in April and turn back one hour at 2 a.m. on the last Sunday of October.

Daylight saving time begins on the second Sunday in March. This year you'll loose one hour of sleep on Sunday, March 9 when the clocks spring forward at 2 a.m.