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.

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.

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

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 …

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 …

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 …

The state of Baja California introduced seasonal clock changes in 1931, remaining the only area in Mexico with a DST schedule for 65 years. In the rest of the country, DST was introduced in 1996 and …

Daylight Saving Time in Other Years DST changes do not necessarily occur on the same date every year. Show DST from: ... Detailed time zone and clock changes in Lisbon

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 …