Daylight Saving Time FAQ
During daylight saving time (DST), clocks are set one hour ahead of where they previously were. This essentially makes the “daylight” begin an hour later in the morning and last an hour longer in the evening. What this change does is help keep the hours of daylight better matched up with the time that most people are active.
When is daylight saving time?
Daylight saving time (DST) begins each and every year on the 2nd Sunday in March, at 2 a.m. local time. At this time, clocks are moved ahead one hour. Daylight saving time ends on the 1st Sunday in November, at 2 a.m. local time, switching back to standard time (ST) and moving clocks back one hour.
Which states use daylight saving?
The vast majority of the United States now uses daylight saving time. But there are still a few states and U.S. territories that do not: Hawaii, American Samoa, Guam, Puerto Rico, the Virgin Islands and most of Arizona. Various parts of Indiana recently switched from not using daylight saving time to using it.
Do other countries and non-US time zones use daylight savings time?
In most countries around the world, time zone borders are decided legislatively. Many countries observe some time change comparable to daylight saving time, although the names and rules usually differ. Some of these countries provide little or no notice when they change their time status or date rules.
What are time zones referred to during daylight saving time?
The time of day for specific time zones is represented as “daylight time” during daylight saving time and “standard time” otherwise. An example of this for the east coast of the United States would be “Eastern standard time” (EST) and “Eastern daylight time” (EDT).