🗺️ US Time Zone Chart: Complete USA Time Zone Map & Converter Live
This page provides a complete time zone chart USA reference, including UTC offsets, major cities, states covered, and Daylight Saving Time rules. Plus, use our interactive time converter below to see the current time in all US zones instantly. No more mental math — just accurate, up-to-date time information at your fingertips.
🕒 Interactive US Time Zone Converter
✅ Note: Converter accounts for Daylight Saving Time (DST) where observed. Arizona (except Navajo) and Hawaii do not observe DST.
📋 Complete US Time Zone Chart
Here is the definitive time zone chart USA reference showing all six zones with their standard UTC offsets, DST offsets, major cities, and states:
| Time Zone | Standard Offset | DST Offset | Major Cities | States (Partial or Full) |
|---|---|---|---|---|
| Eastern (ET) | UTC-5 | UTC-4 | New York, Washington DC, Atlanta, Miami | NY, FL, GA, NC, SC, VA, OH, MI, PA, MA, NJ, CT, RI, NH, ME, VT, DE, MD, DC, parts of IN, KY, TN |
| Central (CT) | UTC-6 | UTC-5 | Chicago, Dallas, Houston, New Orleans, Kansas City | TX, LA, AR, MO, IA, MN, WI, IL, AL, MS, parts of ND, SD, NE, KS, OK, TN, KY, IN, MI, FL panhandle |
| Mountain (MT) | UTC-7 | UTC-6 | Denver, Phoenix*, Salt Lake City, Albuquerque, Billings | CO, UT, WY, MT, NM, ID (south), AZ* (no DST except Navajo), parts of ND, SD, NE, KS, NV, OR, TX |
| Pacific (PT) | UTC-8 | UTC-7 | Los Angeles, San Francisco, Seattle, Portland, Las Vegas | CA, WA, OR, NV, parts of ID |
| Alaska (AKT) | UTC-9 | UTC-8 | Anchorage, Fairbanks, Juneau | Most of Alaska (except western Aleutian Islands) |
| Hawaii-Aleutian (HT) | UTC-10 | UTC-10 (no DST) | Honolulu, Hilo, Kahului | Hawaii, western Aleutian Islands |
* Arizona (except the Navajo Nation) does not observe Daylight Saving Time, staying on Mountain Standard Time (UTC-7) year-round.
🧭 Understanding the US Time Zone Chart: How It Works
The contiguous United States has four main time zones: Eastern, Central, Mountain, and Pacific. Moving from east to west, each zone is one hour behind the previous. Alaska and Hawaii have their own zones further west.
- Eastern to Central: 1 hour difference (ET is 1 hour ahead of CT).
- Eastern to Mountain: 2 hours difference (ET is 2 hours ahead of MT).
- Eastern to Pacific: 3 hours difference (ET is 3 hours ahead of PT).
- Eastern to Alaska: 4 hours difference (ET is 4 hours ahead of AKT).
- Eastern to Hawaii: 5 or 6 hours difference (ET is 5-6 hours ahead of HT depending on DST).
⏰ Daylight Saving Time (DST) in the USA
Most US states observe Daylight Saving Time, but there are important exceptions. Understanding DST is crucial for accurate time zone chart USA usage.
- DST Start: Second Sunday in March (clocks spring forward 1 hour at 2:00 AM local time).
- DST End: First Sunday in November (clocks fall back 1 hour at 2:00 AM local time).
- Non-observing regions: Arizona (except Navajo Nation) and Hawaii do not observe DST.
- During DST: ET becomes UTC-4, CT becomes UTC-5, MT becomes UTC-6, PT becomes UTC-7, AKT becomes UTC-8. Hawaii stays at UTC-10 year-round.
Our interactive converter above automatically applies DST rules based on the date you select, so you always get accurate conversions.
📌 Common Scenarios: Using the US Time Zone Chart
Here are real-world situations where the time zone chart USA comes in handy:
- 📞 Business Calls: “I’m in New York (ET) and need to call a client in Los Angeles (PT). What’s the best time?” Use the chart: PT is 3 hours behind ET. 10 AM ET = 7 AM PT.
- ✈️ Flight Connections: “My flight from Chicago (CT) lands in Denver (MT) at 2 PM CT. What time is that locally?” MT is 1 hour behind CT, so it’s 1 PM MT.
- 📺 TV Schedules: “A show airs at 8 PM ET. When does it air in Phoenix (MT, no DST)?” During DST, ET is UTC-4 but Phoenix is UTC-7, so 8 PM ET = 5 PM Phoenix time.
- 🎥 Remote Meetings: Schedule a meeting for 11 AM ET. Participants in Seattle (PT) join at 8 AM, in Denver (MT) at 9 AM, in Chicago (CT) at 10 AM.
📊 Quick Reference: Time Differences Between US Zones
Use this matrix to quickly compare time differences between any two US time zones:
| Eastern (ET) | Central (CT) | Mountain (MT) | Pacific (PT) | Alaska (AKT) | Hawaii (HT) | |
|---|---|---|---|---|---|---|
| Eastern (ET) | — | 1 hr ahead | 2 hrs ahead | 3 hrs ahead | 4 hrs ahead | 5-6 hrs ahead* |
| Central (CT) | 1 hr behind | — | 1 hr ahead | 2 hrs ahead | 3 hrs ahead | 4-5 hrs ahead* |
| Mountain (MT) | 2 hrs behind | 1 hr behind | — | 1 hr ahead | 2 hrs ahead | 3-4 hrs ahead* |
| Pacific (PT) | 3 hrs behind | 2 hrs behind | 1 hr behind | — | 1 hr ahead | 2-3 hrs ahead* |
| Alaska (AKT) | 4 hrs behind | 3 hrs behind | 2 hrs behind | 1 hr behind | — | 1-2 hrs ahead* |
| Hawaii (HT) | 5-6 hrs behind* | 4-5 hrs behind* | 3-4 hrs behind* | 2-3 hrs behind* | 1-2 hrs behind* | — |
*Hawaii does not observe DST, so the difference varies by 1 hour between March-November vs November-March.
❓ Frequently Asked Questions About US Time Zones
1. What are the 6 time zones in the USA?
The six US time zones from west to east are: Hawaii-Aleutian Time (HST), Alaska Time (AKST), Pacific Time (PT), Mountain Time (MT), Central Time (CT), and Eastern Time (ET). Each zone is approximately one hour apart.
2. Which US states have two time zones?
Several states span two time zones: Nebraska, Kansas, Texas, North Dakota, South Dakota (Central/Mountain); Florida, Michigan, Indiana, Kentucky, Tennessee (Eastern/Central); Oregon, Idaho (Pacific/Mountain); Alaska (Alaska/Hawaii-Aleutian).
3. What is the time difference between New York and Los Angeles?
New York is in Eastern Time (ET), Los Angeles is in Pacific Time (PT). PT is 3 hours behind ET. For example, when it’s 3:00 PM in New York, it’s 12:00 PM (noon) in Los Angeles.
4. Does Arizona observe Daylight Saving Time?
Most of Arizona does not observe DST and remains on Mountain Standard Time (UTC-7) year-round. However, the Navajo Nation within Arizona does observe DST. Hawaii also does not observe DST.
5. What is the UTC offset for each US time zone?
Eastern: UTC-5 (standard) / UTC-4 (DST); Central: UTC-6/UTC-5; Mountain: UTC-7/UTC-6; Pacific: UTC-8/UTC-7; Alaska: UTC-9/UTC-8; Hawaii: UTC-10 (no DST).
6. How do I convert time between US time zones?
Use our interactive converter above! Simply select your reference time and “from” zone, and the tool shows you the corresponding time in all US zones automatically, accounting for DST rules.
7. Why does the US have multiple time zones?
The US spans nearly 2,500 miles from east to west, covering approximately 60 degrees of longitude. Multiple time zones ensure that noon roughly corresponds to when the sun is highest in the sky in each region, which is practical for daily life and business.
🔧 Explore more time tools: You might also find useful resources for “world time zone map,” “UTC time converter,” or “meeting planner across time zones.” Additional free tools will be available soon on TimeCal Culator Plus.