Different time zones list

Note: Local time in these time zones changes when Daylight Saving Time begins and ends.

Time converter

The contiguous US has 4 standard time zones. The above time zones are used during other parts of the year.

However, adding the time zones of 2 uninhabited US territories, Howland Island and Baker Island , brings the total count to 11 time zones. There are 9 time zones by law in the USA and its dependencies. Indiana introduced DST in Sign in. In practice, this means that the local time in these time zones changes when DST begins and ends.

Since Howland Island and Baker Island constitute the world's westernmost landmasses in relation to the International Date Line , making them the last places on Earth where any date exists, they are sometimes assigned a theoretical 12th time zone called Anywhere on Earth AoE. The time zones in the contiguous US are often referred to by their generic name, without making a difference between standard time and Daylight Saving Time designations.

Multiple Time Zones. Popup Window Fullscreen Exit.

The World Clock — Worldwide

Time zones in the USA are defined in the U. There are 9 official time zones according to the law. In addition, Alaska , Hawaii , and 5 US dependencies all have their own time zones. Need some help? They will become active again after the next clock change as Daylight Saving Time begins or ends. A 12th Time Zone?