Time zones in the United States
The United States has 8 distinct clock rules in the time zone database, with 6 standard offsets from UTC−10 to UTC−5. 6 of these 8 change clocks for daylight saving; the rest keep the same time all year.
Honolulu, Wahiawa, Hilo, Wailuku
Atka
Anchorage, Fairbanks, Palmer, Wasilla
Los Angeles, San Francisco, San Diego, Seattle
Phoenix, Mesa, Tucson, Glendale
Denver, Albuquerque, El Paso, Salt Lake City
Chicago, Houston, Dallas, Minneapolis
New York, Philadelphia, Miami, Boston
- Time zones
- 817 IANA identifiers
- UTC offsets used in 2026
- UTC−10, UTC−9, UTC−8, UTC−7, UTC−6, UTC−5, UTC−4
- Daylight saving
- Observed in some zonesNext change: Sunday, November 1, 2026
- Dialing code
- +1
- National holidays in 2026
- 12Public and bank holidays
What to know about time in the United States
US law defines nine standard time zones including territories: Atlantic, Eastern, Central, Mountain, Pacific, Alaska, Hawaii–Aleutian, Samoa, and Chamorro.
Most states observe daylight saving from the second Sunday of March to the first Sunday of November, with each zone changing at 2:00 am local time. Hawaii and most of Arizona do not change clocks.
United States’s time zones in 2026
Zones with identical rules are grouped. Calculated from the IANA time zone database at build time; local dates.
| Time zone | Offsets | Clock changes in 2026 | Major places |
|---|---|---|---|
| Hawaii-Aleutian Standard Time Pacific/Honolulu | UTC−10 | None | Honolulu, Wahiawa, Hilo, Wailuku, Lihue, Kailua-Kona 6 places in our search index |
| Hawaii-Aleutian Standard Time / Hawaii-Aleutian Daylight Time America/Adak | UTC−10 / UTC−9 | Sun, Mar 8: forward to UTC−9; Sun, Nov 1: back to UTC−10 | Atka 1 place in our search index |
| Alaska Standard Time / Alaska Daylight Time America/Anchorage, America/Juneau, America/Sitka +2 more | UTC−9 / UTC−8 | Sun, Mar 8: forward to UTC−8; Sun, Nov 1: back to UTC−9 | Anchorage, Fairbanks, Palmer, Wasilla, Kodiak, Kenai, Bethel, Homer 83 places in our search index |
| Pacific Standard Time / Pacific Daylight Time America/Los_Angeles | UTC−8 / UTC−7 | Sun, Mar 8: forward to UTC−7; Sun, Nov 1: back to UTC−8 | Los Angeles, San Francisco, San Diego, Seattle, Irvine, San Jose, Long Beach, Portland 92 places in our search index |
| Mountain Standard Time America/Phoenix | UTC−7 | None | Phoenix, Mesa, Tucson, Glendale, Yuma, Flagstaff, Lake Havasu City, Prescott 19 places in our search index |
| Mountain Standard Time / Mountain Daylight Time America/Denver, America/Boise | UTC−7 / UTC−6 | Sun, Mar 8: forward to UTC−6; Sun, Nov 1: back to UTC−7 | Denver, Albuquerque, El Paso, Salt Lake City, Aurora, Colorado Springs, Boise, Provo 91 places in our search index |
| Central Standard Time / Central Daylight Time America/Chicago, America/Menominee | UTC−6 / UTC−5 | Sun, Mar 8: forward to UTC−5; Sun, Nov 1: back to UTC−6 | Chicago, Houston, Dallas, Minneapolis, San Antonio, St. Louis, Ft. Worth, Milwaukee 255 places in our search index |
| Eastern Standard Time / Eastern Daylight Time America/New_York, America/Detroit, America/Indiana/Indianapolis +1 more | UTC−5 / UTC−4 | Sun, Mar 8: forward to UTC−4; Sun, Nov 1: back to UTC−5 | New York, Philadelphia, Miami, Boston, Detroit, Atlanta, Washington, D.C., Pittsburgh 227 places in our search index |
Place assignments come from an open city dataset and can contain errors. Examples far from their zone are hidden. Search any place in the converter to check its zone.
Upcoming national holidays in the United States
Offices and banks are often closed, which matters as much as the time difference when you schedule. National public and bank holidays only; regional and many religious holidays are not listed.
| Date | Holiday |
|---|---|
| Wed, Nov 11, 2026 | Veterans Day |
| Thu, Nov 26, 2026 | Thanksgiving Day |
| Fri, Dec 25, 2026 | Christmas Day |
| Fri, Jan 1, 2027 | New Year's Day |
| Mon, Jan 18, 2027 | Martin Luther King Jr. Day |
| Mon, Feb 15, 2027 | Washington's Birthday |
| Mon, May 31, 2027 | Memorial Day |
| Fri, Jun 18, 2027 | Juneteenth (substitute day) |
| Sat, Jun 19, 2027 | Juneteenth |
| Sun, Jul 4, 2027 | Independence Day |
| Mon, Jul 5, 2027 | Independence Day (substitute day) |
| Mon, Sep 6, 2027 | Labour Day |
Source: date-holidays (CC BY 3.0), generated 2026-10-22. Governments can add or move holidays; confirm important dates locally. About our data.
Questions about time in the United States
How many time zones does the United States have?
The time zone database groups the United States into 8 distinct sets of clock rules: Hawaii-Aleutian Standard Time (UTC−10); Hawaii-Aleutian Standard Time / Hawaii-Aleutian Daylight Time (UTC−10/UTC−9); Alaska Standard Time / Alaska Daylight Time (UTC−9/UTC−8); Pacific Standard Time / Pacific Daylight Time (UTC−8/UTC−7); Mountain Standard Time (UTC−7); Mountain Standard Time / Mountain Daylight Time (UTC−7/UTC−6); Central Standard Time / Central Daylight Time (UTC−6/UTC−5); Eastern Standard Time / Eastern Daylight Time (UTC−5/UTC−4).
Does the United States observe daylight saving time?
Hawaii-Aleutian Standard Time / Hawaii-Aleutian Daylight Time: forward on Sunday, March 8, 2026, back on Sunday, November 1, 2026. Alaska Standard Time / Alaska Daylight Time: forward on Sunday, March 8, 2026, back on Sunday, November 1, 2026. Pacific Standard Time / Pacific Daylight Time: forward on Sunday, March 8, 2026, back on Sunday, November 1, 2026. Mountain Standard Time / Mountain Daylight Time: forward on Sunday, March 8, 2026, back on Sunday, November 1, 2026. Central Standard Time / Central Daylight Time: forward on Sunday, March 8, 2026, back on Sunday, November 1, 2026. Eastern Standard Time / Eastern Daylight Time: forward on Sunday, March 8, 2026, back on Sunday, November 1, 2026. Other zones in the United States do not change their clocks.
What are the national public holidays in the United States in 2026?
New Year's Day (January 1), Martin Luther King Jr. Day (January 19), Washington's Birthday (February 16), Memorial Day (May 25), Juneteenth (June 19), Independence Day (substitute day) (July 3), Independence Day (July 4), Labour Day (September 7), Columbus Day (October 12), Veterans Day (November 11), Thanksgiving Day (November 26), Christmas Day (December 25).
City guides in the United States
- Time in New York
- Time in Los Angeles
- Time in Chicago
- Time in San Francisco
- Time in Seattle
- Time in Denver
- Time in Phoenix
- Time in Honolulu
Abbreviations used here
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