When does Eastern Standard Time Begin?

The beginning of every November, we set the clocks back one hour and it becomes local standard time. Clocks are set ahead one hour, on the second Sunday in March, and it becomes daylight standard time. Look here for more information: On the second Sunday in March, clocks are set ahead one hour at 2:00 a.m. local standard time, which becomes 3:00 a.m. local daylight time