What Time Zone Is My State?
The US has 4 main mainland time zones — Eastern, Central, Mountain, and Pacific — plus Alaska and Hawaii. Each zone uses two abbreviations: a standard time (winter) and a daylight time (summer).
View the full interactive state time zone lookup →Is California PST or PDT?
California is Pacific Time. In winter (November–March), California uses PST (UTC-8). In summer (March–November), California uses PDT (UTC-7). Right now in April 2026, California is on PDT.Is Texas CST?
Yes — most of Texas is Central Time. In winter it's CST (UTC-6), in summer it's CDT (UTC-5). The exception is El Paso and far west Texas, which use Mountain Time.Is Ohio EST or EDT?
Ohio is Eastern Time. In winter it uses EST (UTC-5), in summer it uses EDT (UTC-4). The entire state observes the same Eastern Time — no split zones.Is Denver MST or MDT?
Denver (and all of Colorado) is Mountain Time. In winter it uses MST (UTC-7), in summer it uses MDT (UTC-6). Unlike Arizona, Colorado does observe Daylight Saving Time.US Time Zone Summary
| Zone | Winter | Summer | Key States |
|---|---|---|---|
| Eastern | EST (UTC-5) | EDT (UTC-4) | NY, FL, GA, PA, OH |
| Central | CST (UTC-6) | CDT (UTC-5) | TX, IL, MN, WI, MO |
| Mountain | MST (UTC-7) | MDT (UTC-6) | CO, UT, NM, MT, WY |
| Pacific | PST (UTC-8) | PDT (UTC-7) | CA, WA, OR, NV |
| Alaska | AKST (UTC-9) | AKDT (UTC-8) | AK |
| Hawaii | HST (UTC-10) | HST (UTC-10) | HI |
States That Span Two Time Zones
Several states are split between two zones:
- Texas: Central (most) + Mountain (El Paso)
- Florida: Eastern (most) + Central (panhandle)
- Tennessee: Central (most) + Eastern (Knoxville, Chattanooga)
- Indiana: Eastern (most) + Central (NW and SW corners)
- South Dakota: Central (east) + Mountain (Rapid City area)
