EST to GMT Converter

Eastern Standard Time → Greenwich Mean Time · EST is 5 hours behind GMT

EST
—
GMT
—

EST and GMT are the same time

EST to GMT Conversion Table

ESTGMT
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Green rows = business hours overlap (9:00 AM – 6:00 PM EST)

Major EST Cities
  • New York, NY
  • Miami, FL
  • Boston, MA
  • Atlanta, GA
  • Washington D.C.
  • Toronto, Canada
Major GMT Cities
  • London
  • Dublin
  • Lisbon
  • Reykjavik
  • Accra
  • Abidjan
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EST vs GMT — What You Need to Know

EST (UTC-5) is the US East Coast in winter. Summer: EDT (UTC-4).

GMT (UTC+0) is London in winter. Summer: BST (UTC+1).

2026 shifting gap:
  • Before March 8: EST vs GMT → 5h
  • March 8–29 (US on EDT, UK still GMT): 4h
  • March 29 – Oct 25 (both on summer time): 5h
  • Oct 25 – Nov 1 (UK on GMT, US still EDT): 4h
  • After Nov 1: EST vs GMT → 5h

Frequently Asked Questions

How many hours behind is EST compared to GMT?

EST (UTC-5) is 5 hours behind GMT (UTC+0) during standard time. During US Daylight Saving Time, EDT (UTC-4) is 4 hours behind GMT. When the UK is on BST (UTC+1), EST is 6 hours behind. The actual difference depends on which DST periods are active.

When it is 9:00 AM EST, what time is it in London (GMT)?

When it is 9:00 AM EST, it is 2:00 PM GMT (during UK standard time). During British Summer Time (BST), London is at UTC+1, so 9:00 AM EST = 3:00 PM BST.

What is the best time for a New York to London call?

The best window is 9:00 AM to 12:00 PM EST (2:00–5:00 PM GMT). London business hours end around 6 PM GMT (1 PM EST), giving only a 4-hour daily overlap. Schedule calls for morning New York time to catch London before close of business.