Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos
Time Zones in the United States
Introduction & Top Questions References & Edit History Related Topics
Images
Map of the United States showing major time zones, including Eastern (UTC-5), Central (UTC-6), Mountain (UTC-7), Pacific (UTC-8), Alaska (UTC-9), Hawaii-Aleutian (UTC-10), Atlantic (UTC-4), Samoa (UTC-11), and Chamorro (UTC+10). Each time zone is color-coded, with notes on areas not observing daylight saving time, such as most of Arizona, Hawaii, Puerto Rico, and U.S. territories.
Related Questions

Time Zones in the United States: References & Edit History

Article Contributors

Primary Contributors

  • Refugio Mariscal
    Refugio Mariscal is a Cartographer at Encyclopaedia Britannica. 
  • Amy Tikkanen
    Amy Tikkanen is Managing Editor at Encyclopaedia Britannica.

Article History

Type Description Contributor Date
New article added. Jun 25, 2026
View Changes:
Article History
Revised:
By: