GMT to EST converter
EST is 5 hours behind GMT. The gap is stable for most of the year and wrong for about three weeks of it. The full hour-by-hour table is below, and it reads perfectly well with JavaScript turned off. No account, no email address.
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Nothing leaves this browser. There is no account and nothing is uploaded. Offsets are fixed values, not a live feed. See the daylight saving note below.
For conversions between other time zones, visit timezone.day.
GMT to EST, hour by hour
Shaded rows are inside a nine-to-five working day in both London (winter) and New York.
| GMT | EST |
|---|---|
| 6:00am | 1:00am |
| 7:00am | 2:00am |
| 8:00am | 3:00am |
| 9:00am | 4:00am |
| 10:00am | 5:00am |
| 11:00am | 6:00am |
| 12:00pm | 7:00am |
| 1:00pm | 8:00am |
| 2:00pm | 9:00am |
| 3:00pm | 10:00am |
| 4:00pm | 11:00am |
| 5:00pm | 12:00pm |
| 6:00pm | 1:00pm |
| 7:00pm | 2:00pm |
| 8:00pm | 3:00pm |
| 9:00pm | 4:00pm |
| 10:00pm | 5:00pm |
GMT to EST is not the same gap all year
The gap is stable for most of the year and wrong for about three weeks of it. The United States and Europe both use daylight saving, and they do not start and finish it on the same dates: the US moves in mid-March and early November, Europe in late March and late October. In the fortnight or so between, the usual difference is out by an hour.
Those two windows in March and October are when a recurring call quietly moves for one side and not the other.
GMT and EST
- Same all year
- No. One hour less for part of the year
- Shared office hours
- 3 hours
Booking a call between London (winter) and New York
You share about 3 hours of a normal nine-to-five day. 2:00pm to 5:00pm in GMT is 9:00am to 12:00pm in EST. That is inside office hours at both ends, and the only window where neither side is doing you a favour.
When it is 9:00am in London (winter) it is 4:00am in New York. When New York opens at 9:00am, London (winter) reads 2:00pm.
GMT covers the UK in winter, and much of west Africa all year: London (winter), Dublin (winter), Accra, Reykjavik. EST covers the US east coast and eastern Canada: New York, Toronto, Atlanta, Miami, Boston.
GMT to EST: common questions
What time is it in EST when it is 9am GMT?
4:00am. EST is 5 hours behind GMT. The table above runs the same conversion for every hour of the day.
Why is my GMT to EST conversion off by an hour?
Because of daylight saving. The gap is stable for most of the year and wrong for about three weeks of it. The United States and Europe both use daylight saving, and they do not start and finish it on the same dates: the US moves in mid-March and early November, Europe in late March and late October. In the fortnight or so between, the usual difference is out by an hour. If a conversion looks an hour out, check which side of a clock change the date falls on.
Does converting GMT to EST ever change the date?
For most of the working day, no: the two clocks stay on the same calendar day. Late evening and very early morning can straddle midnight, which is why the table above shows the day alongside the time.
What is a good time to schedule a call between GMT and EST?
You share about 3 hours of the normal nine-to-five working day: 2:00pm to 5:00pm in GMT is 9:00am to 12:00pm in EST. Anything inside that window is inside office hours at both ends.
Is this GMT to EST converter free?
Yes, completely. No account, no email address, no trial. The table works with JavaScript turned off and nothing you type is sent anywhere.
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