Change your clocks tonight, lose an hour

It’s time for a little more daylight. Daylight Saving Time begins Sunday and we will lose an hour of sleep. The time changes at 2 a.m. Sunday when you move your clock ahead one hour.

Most of the United States begins Daylight Saving Time at 2:00 a.m. on the second Sunday in March and reverts to standard time on the first Sunday in November.

During DST, clocks are turned forward an hour, effectively moving an hour of daylight from the morning to the evening.

March 20 is the first day of Spring. On March 20, 2011, at precisely 7:21 P.M. EDT (March 20, 23:21 Universal Time), the Sun will cross directly over the Earth's equator. This moment is known as the vernal equinox in the Northern Hemisphere.