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EST to GMT Converter

London is usually 5 hours ahead of New York — but not every week of the year.

Eastern TimeNew York

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EST
—difference

UK timeLondon

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GMT

“GMT” here means UK time (GMT in winter, BST in summer). Pick “Strict GMT” for the fixed UTC+0 time used in aviation and computing.

Convert ET to UK

— UK time

EST to GMT conversion table

Formula: UK time = Eastern Time + 5 hours. Strict GMT/UTC is always 1 hour behind the BST figure.

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

The US and UK change clocks on different dates, so for a few weeks a year the gap is 1 hour smaller than usual. In 2026: Mar 8–Mar 29 and Oct 25–Nov 1. The live clocks above always use the real current offset.

Best meeting times

Working hours that overlap between New York and London:

  • 9-to-5 overlap: 9:00 AM–12:00 PM ET = 2:00 PM–5:00 PM UK.

Frequently asked questions

Is GMT 5 hours ahead of EST?

Yes. EST is UTC−5, so GMT is 5 hours ahead. In summer New York is on EDT (UTC−4), which is 4 hours behind strict GMT but still 5 hours behind London, because London is on BST.

What is 9 AM EST in GMT?

9:00 AM EST is 2:00 PM GMT. During the short periods when the US is on EDT but the UK is still on GMT, it is 1:00 PM in London.

Does GMT change for daylight saving time?

GMT itself never changes. The UK switches from GMT to British Summer Time (BST, UTC+1) on the last Sunday in March and back on the last Sunday in October.

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