EST to GMT converter
GMT never changes for daylight saving time, but Eastern Time does, so the gap moves by an hour twice a year. The table below always shows the right one for your date.
Convert Eastern Standard Time (EST) to Greenwich Mean Time (GMT) for any date and time.
GMT is 4 hours ahead of Eastern Time from March to November, and 5 hours ahead the rest of the year.
Right now Eastern Time is on EDT (UTC−4) and GMT is UTC+0. Eastern Time switches back to standard time on 1 November 2026.
US clocks go back on 1 November 2026. From then, GMT is 5 hours ahead of EST.
9:00 am to 5:00 pm EDT is 1:00 pm to 9:00 pm GMT.
- 8:00 am EDT is 12:00 pm GMT
- 9:00 am EDT is 1:00 pm GMT
- 10:00 am EDT is 2:00 pm GMT
- 12:00 pm EDT is 4:00 pm GMT
- 3:00 pm EDT is 7:00 pm GMT
- 5:00 pm EDT is 9:00 pm GMT
Hours in Eastern Time, Fri, Oct 23
Eastern Time
US & Canada
Fri, Oct 23
EDT · UTC−4ReferenceOutside working hoursGreenwich Mean Time
UTC+0 all year; the UK switches to BST in summer
Fri, Oct 23
GMT · UTC+0+4h from Eastern TimeWorking hours
Best time to meet: 9:00 AM–1:00 PM in Eastern Time on Fri, Oct 23, when everyone is inside working hours.
Book a meeting in this windowWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
EST to GMT conversion table
Every hour of the day in EDT, converted to GMT. Shaded cells are working hours (9:00 am to 5:00 pm); green rows are working hours in both zones.
| EDT / EST | GMT (with EDT)Until 1 November 2026; From 14 March 2027 | GMT (with EST)1 November 2026 to 14 March 2027 |
|---|---|---|
| 12:00 am | 4:00 am GMT | 5:00 am GMT |
| 1:00 am | 5:00 am GMT | 6:00 am GMT |
| 2:00 am | 6:00 am GMT | 7:00 am GMT |
| 3:00 am | 7:00 am GMT | 8:00 am GMT |
| 4:00 am | 8:00 am GMT | 9:00 am GMT |
| 5:00 am | 9:00 am GMT | 10:00 am GMT |
| 6:00 am | 10:00 am GMT | 11:00 am GMT |
| 7:00 am | 11:00 am GMT | 12:00 pm GMT |
| 8:00 am | 12:00 pm GMT | 1:00 pm GMT |
| 9:00 am | 1:00 pm GMT | 2:00 pm GMT |
| 10:00 am | 2:00 pm GMT | 3:00 pm GMT |
| 11:00 am | 3:00 pm GMT | 4:00 pm GMT |
| 12:00 pm | 4:00 pm GMT | 5:00 pm GMT |
| 1:00 pm | 5:00 pm GMT | 6:00 pm GMT |
| 2:00 pm | 6:00 pm GMT | 7:00 pm GMT |
| 3:00 pm | 7:00 pm GMT | 8:00 pm GMT |
| 4:00 pm | 8:00 pm GMT | 9:00 pm GMT |
| 5:00 pm | 9:00 pm GMT | 10:00 pm GMT |
| 6:00 pm | 10:00 pm GMT | 11:00 pm GMT |
| 7:00 pm | 11:00 pm GMT | 12:00 am GMT(next day) |
| 8:00 pm | 12:00 am GMT(next day) | 1:00 am GMT(next day) |
| 9:00 pm | 1:00 am GMT(next day) | 2:00 am GMT(next day) |
| 10:00 pm | 2:00 am GMT(next day) | 3:00 am GMT(next day) |
| 11:00 pm | 3:00 am GMT(next day) | 4:00 am GMT(next day) |
Best times to meet
Your working hours overlap for 4 hours, from 9:00 am EDT (1:00 pm GMT) to 1:00 pm EDT (5:00 pm GMT). That's the best window for a meeting.
About these time zones
EST: Eastern Standard Time
Eastern Standard Time is UTC−5.
New York, Florida, Georgia, the Carolinas, Ohio, Michigan and the rest of the East Coast, plus Ontario and Quebec in Canada. Panama, Jamaica and Cancún stay on EST all year. ET is the short form for the whole zone.
Most places on Eastern Time are on EDT (UTC−4) right now, not EST. People still say "EST" all year, so the times on this page follow the clocks and show EDT until 1 November 2026.
GMT: Greenwich Mean Time
Greenwich Mean Time is UTC+0.
The same time as UTC. The UK, Ireland and Portugal use GMT in winter, then switch to summer time (BST in the UK) from late March to late October. Iceland and much of West Africa stay on GMT all year.
How the difference changes
Right now GMT is 4 hours ahead of EDT. From 1 November 2026, when US clocks go back, the difference becomes 5 hours. From 14 March 2027, when US clocks go forward, the difference becomes 4 hours.