Convert US Eastern Time to GMT / UK time, with daylight saving handled automatically.
Home row (top) sets the day. DST handled automatically via Intl.
Working hours (9–17)DaytimeNightNowSelected
EST to GMT — New York to London time
US Eastern Time (EST/EDT) and UK time (GMT in winter, BST in summer) both observe daylight saving, so London is normally 5 hours ahead of New York.
Period
Difference
Most of the year
London is 5 hours ahead of New York
DST changeover (~2 weeks, spring & autumn)
the gap is briefly 4 hours
New York morning to early afternoon (8 AM–1 PM ET) is UK afternoon (1–6 PM GMT/BST) — a reliable UK–US overlap.
Frequently asked questions
What is the time difference between EST and GMT?
UK time is normally 5 hours ahead of US Eastern Time — when it is 8:00 AM in New York, it is 1:00 PM in London. For about two weeks each spring and autumn, when the US and UK change clocks on different dates, the gap is briefly 4 hours.
What time is 9 AM EST in the UK?
9:00 AM in New York is 2:00 PM in London the same day.
Is GMT the same as UK time?
The UK uses GMT (UTC+0) in winter and British Summer Time, BST (UTC+1), in summer. People often say GMT to mean UK time generally.