Eastern Time (ET)
UTC−5 / −4 DST · New York, Washington DC, Atlanta, Miami
The US mainland spans four time zones, with Alaska and Hawaii adding two more. Reference clock below: Eastern Time (New York, Washington DC).
UTC−5 / −4 DST · New York, Washington DC, Atlanta, Miami
UTC−6 / −5 DST · Chicago, Houston, Dallas, New Orleans
UTC−7 / −6 DST · Denver, Salt Lake City, Albuquerque
UTC−8 / −7 DST · Los Angeles, San Francisco, Seattle
UTC−9 / −8 DST · Anchorage, Fairbanks, Juneau
UTC−10, no DST · Honolulu, Hilo
The continental United States is divided into four standard time zones — Eastern, Central, Mountain, and Pacific — each one hour apart. Alaska sits one hour behind Pacific, and Hawaii two hours behind Pacific in winter (three in summer, because Hawaii does not observe daylight saving time).
From the second Sunday of March to the first Sunday of November, every state except Hawaii and most of Arizona moves clocks forward one hour for daylight saving time. During that period Eastern Time is UTC−4 rather than UTC−5, and so on across the zones.
Time zone boundaries follow state and county lines rather than straight meridians, which is why parts of Indiana, Kentucky, Tennessee, Texas, and the Dakotas sit in a different zone than the rest of their state. Each state page below lists exactly which zone — or zones — apply.
Every city page shows a live local clock, sunrise and sunset, DST dates, and time differences against major US cities. Full list on each state page.
Hour-by-hour conversion charts between US zones, with the current time in both zones and the best overlap for calls and meetings.