Spring Forward: The clocks are set ahead one hour during Spring Forward. In 2013, this occurs on Sunday, March 10.
Daylight Savings Time, or DST, begins
on the second Sunday of March and ends on the first Sunday of
November. In March, clocks are moved forward one hour from 2am
standard time to 3am DST, and in November, clocks are moved back one
hour from 2am DST to 1am standard time. The phrase "spring
forward, fall back" is a helpful reminder of these time changes.