When Does DST Start and End in the US? Daylight Saving Time (DST) in most of the United States starts on the second Sunday in March and ends on the first Sunday in November.

A guide to Daylight Saving Time on timeanddate.com—including which countries use DST, upcoming DST changes, and history.

Almost all of the US state of Arizona does not use Daylight Saving Time (DST), and uses the time zone Mountain Standard Time (MST) all year.

More than half of US states are considering removing Daylight Saving Time (DST). Why do we still have it, and which states are ready to remove it?

What DST does is to change the time we use to schedule our daily routines, shifting it in relation to solar time, which is defined by the Sun's course. When we spring forward as DST begins, our clocks show …

Sunday, March 9, 2025, 3:00:00 am local daylight time instead. Sunrise and sunset were about 1 hour later on Mar 9, 2025 than the day before. There was more light in the evening and less light in the …

Sep 11, 2025 · Daylight Saving Time (DST) is the practice of setting the clocks forward during part of the year to make better use of natural daylight. DST is usually one hour ahead of standard time and runs …

Daylight Saving Time History in California California first observed Daylight Saving Time in 1918. California has observed DST for 84 years between 1918 and 2025. Previous time with no Daylight …

Mar 29, 2025 · Both continental Norway, which includes the capital Oslo, and Svalbard, a Norwegian archipelago in the Arctic Ocean, use Central European Time (CET) as standard time. When Daylight …

Mar 7, 2024 · The US Senate has passed a bill allowing permanent Daylight Saving Time (DST) in all US states.