Find when daylight saving starts and ends in a given year.
Daylight saving in the US begins on the second Sunday of March and ends on the first Sunday of November. Knowing the exact switch dates avoids scheduling confusion around the hour that disappears in spring.
Daylight Saving Dates
US DST: start = second Sunday in March; end = first Sunday in November
US DST: start = second Sunday in March; end = first Sunday in November Daylight saving in the US begins on the second Sunday of March and ends on the first Sunday of November.
Knowing the exact switch dates avoids scheduling confusion around the hour that disappears in spring.
This calculator takes 1 input: Year. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.