US Standard Time Zones - Time Zones  |
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| Pacific -8 | Mountain -7 | Central -6 | Eastern -5 |
| Time Zone | Time Zone | Time Zone | Time Zone |
, with 4 main time zones, Pacific / Mountain / Central / Eastern. In addition to Alaska, Hawaii, and 3 US dependencies.
More info
Several states in the Eastern US (Central ← Eastern) and Central US (Mountain ← Central), have locations that use the contiguous states time zone.
US Daylight Saving Time 2023
On Sunday, March 12, the United States turned the clock forward one hour, at 2:00 a.m. it was 3:00 a.m. Daylight Saving Time Started. More info.
The Clock time is updated with the time change, along with the time zone and summer or winter symbols. + info. 24 hour clock format. World Time Map 
| US Pacific Time | US Mountain Time* |
|---|---|
| California | Colorado |
| Los Angeles | Montana |
| San Francisco | New Mexico |
| Washington | Utah |
| Seattle | Wyoming |
| Swapped time zones Pacific ⇄ Mountain | |
| Oregon +info | → Ontario OR → Malheur Cty OR |
| Portland | |
| Nevada +info | → W.Wendover NV |
| Las Vegas | |
| Coeur d'Alene ← ID Lewiston ← ID |
Idaho +info |  |
| Boise | |
| Pacific Zone |
Arizona Time |
Phoenix  + cities |
|
| No daylight savings* | |
| + localities in the Mountain Time Zone | |
Eastern US states with Central Time |
|
| Central ← Eastern | US Eastern Time (*) |
|---|---|
| Pensacola ← FL | Florida* +info Jacksonville  Miami |
| Panama City ← FL | |
| Gary ← IN | Indiana* +info | Indianapolis |
| Evansville ← IN | |
| Iron Mountain ← MI | Michigan* +info Detroit Lansing |
| Menominee ← MI | |
| West Kentucky +info | |
East Kentucky +info | |
| Bowling Green | Frankfort Louisville |
| Owensboro | Lexington |
| West Tennessee +inf | |
East Tennessee +inf | |
| Clarksville | Chattanooga |
| Memphis | Johnson City |
| Nashville |
Knoxville |
| US Central Time |
US Eastern time |
| Central US States with Mountain Time | |
| Mountain ← Central | US Central Time (*) |
|---|---|
| Goodland ← KS Syracuse ← KS |
Kansas* +info Topeka Wichita |
| Scottsbluff ← NE Alliance ← NE |
Nebraska* +info Lincoln Omaha |
| Bowman ← ND |
North Dakota* +info Bismarck Fargo |
| Dickinson ← ND | |
| Rapid City ← SD | South Dakota* +info Pierre Sioux Falls |
| Spearfish ← SD | |
| El Paso ← TX Hudspeth Cty ← TX |
Texas* +info Austin Houston |
| US Mountain Time |
US Central Time |
| US Alaska Time* | Arizona (Mountain T.)* |
|---|---|
| Anchorage |
Chandler |
| Fairbanks | Mesa |
| Juneau |
Phoenix |
| Wasilla | Tucson (+ cities) |
| Time Zone Exceptions | Time Zone Exceptions |
| Adak (Alaska) | Navajo Nation*AZ |
| Aleutian Islands (AK) | Window Rock *AZ |
| Hawaiian islands | Time Zones |
|---|---|
Note:     4-color time zones = multple 4-hour intervals between the same colors, except when the countries or states do not coincide in daylight saving time. Same time zone without DST, color is usually dimmed. +info |
|
| East Honolulu | |
| Honolulu |
|
| Hilo | |
| Kailua | |
| Mililani Town | |
| Pearl City | |
| Waipahu |  World Time Zone |
Capital Most populous city 
Capital of the country
| Pacific time zone |
Mountain t. zone |
|---|---|
| Current Pacific Time | Current Mountain Time |
| Los Angeles (CA) | Denver (Colorado) |
| US Pacific Time Zone | US Mountain Time Z. |
| PST = standard -8h PDT = daylight -7h |
MST = standard -7h MDT = daylight -6h |
| *Shared time zones Pacific ⇄ Mountain | *US Mountain states with 2 time zones |
| Arizona time zone |
|
| Arizona Mountain T. | |
| Phoenix | |
| About the colors of time zones | MST = standard -7h No daylight saving |
| Central time zone |
Eastern time zone |
|---|---|
| Current Central Time | Current Eastern Time |
| Chicago (Illinois) | New York (NY) |
| US Central Time Zone | US Eastern Time Z. |
| CST = standard -6h CDT = daylight -5h |
EST = standard -5h EDT = daylight -4h |
| *Central US states with 2 time zones | *Eastern US states with 2 time zones |
| Hawaii time zone |
Alaska time zone |
| Honolulu |
Juneau |
| Hawaii Time Zone | Alaska Time Zone |
| HST = std -10h No daylight saving |
AKST = standard -9h AKDT = daylight -8h |
| Atlantic time zone |
|---|
| Puerto Rico |
| US Virgin Islands |
| AST = standard -4h No daylight saving |
| American Samoa time |
|---|
| American Samoa |
| Pago Pago |
| SST = standard -11h No daylight saving |
| Chamorro time zone |
|---|
| Guam |
| Northern Mariana Islands |
| ChST = standard +10h No daylight saving |
The US spans 4 main time zones, from west to east: Pacific Time - Mountain Time - Central Time - Eastern Time.
2 non-contiguous time zones: Alaska Time and Hawaii Islands Time, and 3 US dependencies which none of them use daylight saving time.
* There are 2 more time zones corresponding to US Minor Outlying Islands. more info on wiki
The letters S (standard) and D (daylight), are the acronyms that show the current period of the time zone.
For example, PST Pacific standard time / PDT Pacific daylight time, plus symbols that appear next to the clock time
Daylight saving time in US begins on the second Sunday in March, at 2:00 a.m., moving the clock forward 1 hour and returning to winter or standard time on the first Sunday in November, at 2:00 a.m., turning the clock back 1 hour. 
US map.
Information: On March 15, 2022, the US Senate approved a bill to maintain daylight saving time permanently in all US states, however for now it remains as it is and has not become a Law, since it is pending approval by the House of Representatives.
| USA daylight saving time 2023 | |
Starts + 1h  |
Ends - 1h  |
| March-12 Sun. 2:00 → 3:00 |
Nov.-5 Sun. 2:00 → 1:00 |
| 2nd Sunday in March, at 2:00 a.m., US turns the clock forward 1 hour | 1st Sunday in November, at 2:00 a.m., US turns the clock back 1 hour |
| Pacific Time / Mountain Time / Central Time / Eastern Time | |
Clocks symbols:
Daylight Saving Time. UTC standard time, or winter time. 
No Daylight Saving Time throughout the year. 24 hour clock format
Clocks and symbols (daylight saving - winter) are updated in real time as the time changes in different US time zones.
2022
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