Daylight Saving Time begins in the United States on the second Sunday in March and ends on the first Sunday in November. On the second Sunday in March clocks are set ahead one hour at 2:00 am local standard time, which becomes 3:00 am. local daylight time. Not all places in the U.S. observe Daylight Saving Time; for example Hawaii and most of Arizona (with the exception of the Navajo Indian Reservation in Arizona) do not use it.
It is Daylight Saving Time, NOT Daylight SavingS Time. We are saving daylight, so it is singular and not plural.
