What Time Zone Is USA?
USA uses 8 time zones: EST (UTC−5), CST (UTC−6), PST (UTC−8), MST (UTC−7), MST (UTC−7), HST (UTC−10), AKST (UTC−9), UTC−10 (UTC−10). New York is on EST.
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· USA — main zone
America/New_York
Time zones in USA
| Time zone | Offset now | Local time | Main areas |
|---|---|---|---|
| Eastern Standard Time (EST) | UTC−5 | --:-- | New York, Philadelphia, Miami, Boston, Atlanta, Washington, D.C. |
| Central Standard Time (CST) | UTC−6 | --:-- | Chicago, Houston, Dallas, Minneapolis, San Antonio, St. Louis |
| Pacific Standard Time (PST) | UTC−8 | --:-- | Los Angeles, San Francisco, San Diego, Seattle, Irvine, San Jose |
| Mountain Standard Time (MST) | UTC−7 | --:-- | Denver, Albuquerque, El Paso, Salt Lake City, Aurora, Colorado Springs |
| Mountain Standard Time (MST) | UTC−7 | --:-- | Phoenix, Mesa, Tucson, Glendale |
| Hawaii-Aleutian Standard Time (HST) | UTC−10 | --:-- | Honolulu |
| Alaska Standard Time (AKST) | UTC−9 | --:-- | Anchorage |
| Hawaii-Aleutian Standard Time (UTC−10) | UTC−10 | --:-- | America/Adak |
Convert USA time
Main time zone of USA
| Time zone | Eastern Standard Time |
|---|---|
| Abbreviation | EST |
| UTC offset | UTC−5 |
| IANA time zone id | America/New_York |
| Daylight saving time | Yes – UTC−5 in winter, UTC−4 in summer |
Daylight saving time in USA
2026
- 8 March 2026: Clocks go forward 1 hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).
- 1 November 2026: Clocks go back 1 hour at 01:59 local time, from EDT (UTC−4) to EST (UTC−5).
2027
- 14 March 2027: Clocks go forward 1 hour at 01:59 local time, from EST (UTC−5) to EDT (UTC−4).
- 7 November 2027: Clocks go back 1 hour at 01:59 local time, from EDT (UTC−4) to EST (UTC−5).
USA time zone FAQ
What time zone is USA in?
USA spans 8 time zones: EST (UTC−5), CST (UTC−6), PST (UTC−8), MST (UTC−7), MST (UTC−7), HST (UTC−10), AKST (UTC−9), UTC−10 (UTC−10).
Which areas of USA use each time zone?
EST: New York, Philadelphia, Miami, Boston. CST: Chicago, Houston, Dallas, Minneapolis. PST: Los Angeles, San Francisco, San Diego, Seattle. MST: Denver, Albuquerque, El Paso, Salt Lake City. MST: Phoenix, Mesa, Tucson, Glendale. HST: Honolulu. AKST: Anchorage. UTC−10: America/Adak
Does all of USA observe daylight saving time?
No. EST, CST, PST, MST, AKST, UTC−10 change, while MST, HST stay the same all year.
Updated 6 November 2026. Time zone data: IANA tz database.