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.

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, …

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 …

When Does DST Start and End in Italy? Italy's DST period starts on the last Sunday of March and ends on the last Sunday of October, together with most other European countries.

Mar 29, 2025 · The European mainland of the Netherlands uses Daylight Saving Time (DST) during part of the year. The DST period starts on the last Sunday of March and ends on the …

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?

The US Senate has passed a bill allowing permanent Daylight Saving Time (DST) in all US states.

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 …