Convert time from EST to GMT. Enter any time to see the equivalent GMT time, compare current EST and GMT times side by side, and find overlapping business hours for calls and meetings.
Use this EST to GMT converter to compare US East Coast and United Kingdom time, check the 5 hours gap, and confirm the right slot for calls, handoffs, and deadlines. Good overlap starts around 9:00 AM EST / 2:00 PM GMT.
Converting between Eastern Standard Time and Greenwich Mean Time means accounting for a 5 hours gap — here's how to do it in under 10 seconds with no sign-up.
Pick the date and time in Eastern Standard Time (UTC -5) that you want to convert. Hit "Now" to load the current est time instantly, or use "+1h" to step forward and compare.
The equivalent Greenwich Mean Time (UTC +0) time appears immediately. Since gmt is 5 hours ahead of est, most daytime conversions stay on the same calendar day.
Click "Copy Time" to grab the gmt result for your calendar or message. Use "+1d" to check how the conversion shifts across dates — useful when Daylight Saving Time changes the gap.
When someone in United States suggests 9:00 AM est, that's 2:00 PM gmt. This converter shows the overlap so both sides agree on one slot — no back-and-forth.
Late-night est times can land on a different date in gmt because of the 5 hours offset. The converter labels "next day" or "previous day" next to the result so you never send a message a day early or miss a deadline.
Daylight Saving adjustments can widen or narrow the est–gmt gap by an hour. During transition weeks many people get it wrong. This converter pulls the current UTC offsets automatically, so the result is right even on the changeover day.
Product launches, sports matches, and webinars are often announced in est. Convert the event time to gmt so you know exactly when to tune in — with a 5 hours difference, a morning event in United States falls during work hours in United Kingdom.
Quick-reference conversion table covering every hour of the day at a glance.
Eastern Standard Time to Greenwich Mean Time full day schedule
| Eastern Standard Time | Greenwich Mean Time |
|---|---|
| 12:00 AM |
5:00 AM
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| 1:00 AM |
6:00 AM
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| 2:00 AM |
7:00 AM
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| 3:00 AM |
8:00 AM
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| 4:00 AM |
9:00 AM
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| 5:00 AM |
10:00 AM
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| 6:00 AM |
11:00 AM
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| 7:00 AM |
12:00 PM
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| 8:00 AM |
1:00 PM
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| 9:00 AM |
2:00 PM
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| 10:00 AM |
3:00 PM
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| 11:00 AM |
4:00 PM
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| 12:00 PM |
5:00 PM
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| 1:00 PM |
6:00 PM
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| 2:00 PM |
7:00 PM
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| 3:00 PM |
8:00 PM
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| 4:00 PM |
9:00 PM
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| 5:00 PM |
10:00 PM
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| 6:00 PM |
11:00 PM
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| 7:00 PM |
12:00 AM
(next day)
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| 8:00 PM |
1:00 AM
(next day)
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| 9:00 PM |
2:00 AM
(next day)
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| 10:00 PM |
3:00 AM
(next day)
|
| 11:00 PM |
4:00 AM
(next day)
|
The transatlantic banking meeting slot. EST is 5 h behind GMT (4 h during EDT/BST). Two overlap windows: 8-11 AM ET (1-4 PM GMT) — the "Wall Street morning meets London afternoon" that anchors global equities trading — and 5 PM ET (10 PM GMT) weekly all-hands calls. UK bank compliance filings that "close 5 PM London" mean 12 PM ET — a hard deadline that catches many US-based operators mid-lunch.
US East Coast — the reference clock for US business, Wall Street, US law and consulting firms, most Fortune 500 HQ. Business hours 9 AM – 6 PM ET. Note: EST is the winter offset (UTC-5); EDT (UTC-4) is the summer offset — "ET" is the year-round non-committal way to refer to this zone in scheduling apps.
UK / Ireland / Iceland / Portugal / West Africa. Business hours 9 AM – 5:30 PM GMT typically. Note: London is on GMT in winter, BST (GMT+1) in summer — but "GMT" gets used loosely all year in scheduling contexts. Financial-services London anchors the European trading day.
Time gap: GMT is 5.0 hours ahead of EST (standard-time offsets — daylight-saving flips shift this by an hour twice a year in most northern-hemisphere zones).
Explore more est conversions for major business and travel corridors. Each page includes a 24-hour chart, time difference summary, and meeting overlap guidance.
Find the time difference from any major zone into Greenwich Mean Time. Use these pages when scheduling with United Kingdom from a different region.
