Map of U.S. time zones with new CST and EST areas displayed
This is a list of United States of America States by time zone. For more about the time zones of the U.S. and other time zones see: time zone. Most of the U.S. has Daylight Saving Time (DST), so states that have DST are not marked as such and states that don't have DST are clearly marked as such. This is the opposite of how it is marked in the time zone article.
- Alabama: UTC-6 CST Central Standard Time
- Alaska:
- Most of state: UTC-9 AKST Alaska Standard Time
- Aleutian Islands (west of 169° 30' W): UTC-10 HST with DST Hawaii-Aleutian Standard Time
- American Samoa: UTC-11 without DST Samoa Standard Time
- Arizona: UTC-7 MST without DST Mountain Standard Time
- Arkansas: UTC-6 CST Central Standard Time
- California: UTC-8 PST Pacific Standard Time
- Colorado: UTC-7 MST Mountain Standard Time
- Connecticut: UTC-5 EST Eastern Standard Time
- Delaware: UTC-5 EST Eastern Standard Time
- Florida
- Georgia: UTC-5 EST Eastern Standard Time
- Guam: UTC+10 without DST Chamorro Standard Time
- Hawaii: UTC-10 HST without DST Hawaii-Aleutian Standard Time
- Idaho:
- part in: UTC-8 PST Pacific Standard Time (north of the Salmon River, that is between the Oregon state border and the Idaho County/Lemhi County border; west of the Idaho County/Lemhi County border, that is between the Salmon River and the Montana state border)
- Remainder of state: UTC-7 MST Mountain Standard Time (A legislative error in 1966 seems to have moved this area to UTC-6 CST. 15 U.S.C. ch.6, § 264. MST is observed.)
- Illinois: UTC-6 CST Central Standard Time
- Indiana
- Most of state: UTC-5 EST Eastern Standard Time
- Northwest and southwest corners: UTC-6 CST Central Standard Time
- Iowa: UTC-6 CST Central Standard Time
- Kansas
- Kentucky
- Eastern half of state: UTC-5 EST Eastern Standard Time
- Western half of state: UTC-6 CST Central Standard Time
- Louisiana: UTC-6 CST Central Standard Time
- Maine: UTC-5 EST Eastern Standard Time
- Maryland: UTC-5 EST Eastern Standard Time
- Massachusetts: UTC-5 EST Eastern Standard Time
- Michigan
- Most of state: UTC-5 EST Eastern Standard Time
- Counties bordering on Wisconsin: UTC-6 CST Central Standard Time
- Minnesota: UTC-6 CST Central Standard Time
- Mississippi: UTC-6 CST Central Standard Time
- Missouri: UTC-6 CST Central Standard Time
- Montana: UTC-7 MST Mountain Standard Time
- Nebraska
- Nevada
- Most of State: UTC-8 PST Pacific Standard Time
- Jackpot and West Wendover: UTC-7 MST Mountain Standard Time
- New Hampshire: UTC-5 EST Eastern Standard Time
- New Jersey: UTC-5 EST Eastern Standard Time
- New Mexico: UTC-7 MST Mountain Standard Time
- New York: UTC-5 EST Eastern Standard Time
- North Carolina: UTC-5 EST Eastern Standard Time
- North Dakota
- Northern Mariana Islands: UTC+10 without DST Chamorro Standard Time
- Ohio: UTC-5 EST Eastern Standard Time
- Oklahoma: UTC-6 CST Central Standard Time
- Oregon
- Most of state: UTC-8 PST Pacific Standard Time (including southern 1/5 of Malheur County)
- Remainder of Malheur County: UTC-7 MST Mountain Standard Time
- Pennsylvania: UTC-5 EST Eastern Standard Time
- Puerto Rico: UTC-4 AST without DST Atlantic Standard Time
- Rhode Island: UTC-5 EST Eastern Standard Time
- South Carolina: UTC-5 EST Eastern Standard Time
- South Dakota
- Eastern half of state: UTC-6 CST Central Standard Time
- Western half of state: UTC-7 MST Mountain Standard Time
- Tennessee
- Texas
- Utah: UTC-7 MST Mountain Standard Time
- Vermont: UTC-5 EST Eastern Standard Time
- Virginia: UTC-5 EST Eastern Standard Time
- U.S. Virgin Islands: UTC-4 AST without DST Atlantic Standard Time
- Washington: UTC-8 PST Pacific Standard Time
- Washington, DC: UTC-5 EST Eastern Standard Time
- West Virginia: UTC-5 EST Eastern Standard Time
- Wisconsin: UTC-6 CST Central Standard Time
- Wyoming: UTC-7 MST Mountain Standard Time
