Convert EST to GMT
GMT = EST +5 h
GMT is 5 hours ahead of EST. EST is always UTC−5 and GMT is always UTC+0, so this gap is the same on every date.
EST · Eastern Standard Time · UTC−5
8:15AM
Tuesday, November 3, 2026
GMT · Greenwich Mean Time · UTC+0
1:15PM
Tuesday, November 3, 2026
New York is on EST (UTC−5) right now.
The UK is on GMT (UTC+0) right now.
- Next clock change: March 14, 2027. New York moves to EDT (UTC−4), so the UK is then 4 hours ahead of New York.
- Next clock change: March 28, 2027. The UK moves to BST (UTC+1), so the UK is then 5 hours ahead of New York.
- Next clock change: October 31, 2027. The UK moves to GMT (UTC+0), so the UK is then 4 hours ahead of New York.
- Next clock change: November 7, 2027. New York moves to EST (UTC−5), so the UK is then 5 hours ahead of New York.
EST to GMT for every hour
Each GMT column holds for part of the year (dates in the header for 2027). The first uses the fixed offsets (EST UTC−5, GMT UTC+0); the others give local clock time when daylight saving time changes the gap. From 7:00 PM EST, GMT is already on the next calendar day.
| EST | GMT +5 hfixed offsets | GMT +4 hMar 14 – Mar 28, Oct 31 – Nov 7 | 24-hour |
|---|---|---|---|
| 12:00 AM | 5:00 AM | 4:00 AM | 00:00 → 05:00 |
| 1:00 AM | 6:00 AM | 5:00 AM | 01:00 → 06:00 |
| 2:00 AM | 7:00 AM | 6:00 AM | 02:00 → 07:00 |
| 3:00 AM | 8:00 AM | 7:00 AM | 03:00 → 08:00 |
| 4:00 AM | 9:00 AM | 8:00 AM | 04:00 → 09:00 |
| 5:00 AM | 10:00 AM | 9:00 AM | 05:00 → 10:00 |
| 6:00 AM | 11:00 AM | 10:00 AM | 06:00 → 11:00 |
| 7:00 AM | 12:00 PM | 11:00 AM | 07:00 → 12:00 |
| 8:00 AM | 1:00 PM | 12:00 PM | 08:00 → 13:00 |
| 9:00 AM | 2:00 PM | 1:00 PM | 09:00 → 14:00 |
| 10:00 AM | 3:00 PM | 2:00 PM | 10:00 → 15:00 |
| 11:00 AM | 4:00 PM | 3:00 PM | 11:00 → 16:00 |
| 12:00 PM | 5:00 PM | 4:00 PM | 12:00 → 17:00 |
| 1:00 PM | 6:00 PM | 5:00 PM | 13:00 → 18:00 |
| 2:00 PM | 7:00 PM | 6:00 PM | 14:00 → 19:00 |
| 3:00 PM | 8:00 PM | 7:00 PM | 15:00 → 20:00 |
| 4:00 PM | 9:00 PM | 8:00 PM | 16:00 → 21:00 |
| 5:00 PM | 10:00 PM | 9:00 PM | 17:00 → 22:00 |
| 6:00 PM | 11:00 PM | 10:00 PM | 18:00 → 23:00 |
| 7:00 PM | 12:00 AM +1 day | 11:00 PM | 19:00 → 00:00 |
| 8:00 PM | 1:00 AM +1 day | 12:00 AM +1 day | 20:00 → 01:00 |
| 9:00 PM | 2:00 AM +1 day | 1:00 AM +1 day | 21:00 → 02:00 |
| 10:00 PM | 3:00 AM +1 day | 2:00 AM +1 day | 22:00 → 03:00 |
| 11:00 PM | 4:00 AM +1 day | 3:00 AM +1 day | 23:00 → 04:00 |
Bold rows fall inside office hours (9:00 to 17:00) on both sides. The dot marks the current EST hour.
The EST times people look up most
| EST | GMT +5 h | GMT +4 h |
|---|---|---|
| 6:00 PM | 11:00 PM | 10:00 PM |
| 7:04 AM | 12:04 PM | 11:04 AM |
| 7:30 PM | 12:30 AM +1 day | 11:30 PM |
| 1:45 AM | 6:45 AM | 5:45 AM |
| 1:45 PM | 6:45 PM | 5:45 PM |
| 12:30 AM | 5:30 AM | 4:30 AM |
| 11:14 AM | 4:14 PM | 3:14 PM |
Does the difference change during the year?
As written, no: EST is always UTC−5 and GMT is always UTC+0, so the gap is 5 hours on every date. But New York uses EST only in winter and the UK uses GMT only in winter, and people often keep writing “EST” when they mean the local time. Between the local clocks of New York and the UK, the gap is 5 hours or 4 hours:
| From | What changes | New York | The UK | GMT vs EST |
|---|---|---|---|---|
| January 1 | Start of the year | EST (UTC−5) | GMT (UTC+0) | +5 h |
| March 8 | New York moves to EDT (UTC−4) | EDT (UTC−4) | GMT (UTC+0) | +4 h |
| March 29 | The UK moves to BST (UTC+1) | EDT (UTC−4) | BST (UTC+1) | +5 h |
| October 25 | The UK moves to GMT (UTC+0) | EDT (UTC−4) | GMT (UTC+0) | +4 h |
| November 1 | New York moves to EST (UTC−5) | EST (UTC−5) | GMT (UTC+0) | +5 h |
| From | What changes | New York | The UK | GMT vs EST |
|---|---|---|---|---|
| January 1 | Start of the year | EST (UTC−5) | GMT (UTC+0) | +5 h |
| March 14 | New York moves to EDT (UTC−4) | EDT (UTC−4) | GMT (UTC+0) | +4 h |
| March 28 | The UK moves to BST (UTC+1) | EDT (UTC−4) | BST (UTC+1) | +5 h |
| October 31 | The UK moves to GMT (UTC+0) | EDT (UTC−4) | GMT (UTC+0) | +4 h |
| November 7 | New York moves to EST (UTC−5) | EST (UTC−5) | GMT (UTC+0) | +5 h |
Converting EST to GMT by hand
With the fixed offsets, add 5 hours: 3:30 PM EST is 8:30 PM GMT.
With the +4 h gap (Mar 14 – Mar 28, Oct 31 – Nov 7), add 4 hours: 3:30 PM EST is 7:30 PM GMT.
Going back from GMT to EST, do the opposite: the GMT to EST page has its own table.
Where the EST and GMT working days overlap
EST to GMT (+5 h): Two 9:00–17:00 days share 3 hours: 9:00 AM to 12:00 PM EST, which is 2:00 PM to 5:00 PM GMT.
+4 h (from Mar 14 to Mar 28 and Oct 31 to Nov 7, 2027): Two 9:00–17:00 days share 4 hours: 9:00 AM to 1:00 PM EST, which is 1:00 PM to 5:00 PM GMT.
A meeting fixed in one city’s calendar moves by an hour for the other when the gap changes. Calendar apps handle this when the event is saved in a named zone (for example America/New_York) rather than as a fixed offset.
What EST and GMT mean
Eastern Standard Time
EST is UTC−5. The US East Coast and eastern Canada (New York, Washington, Miami, Toronto, Montreal) use it only in winter; from the second Sunday of March to the first Sunday of November they are on EDT, UTC−4. Jamaica, Panama and Cancún keep it all year, and since 2026 so does Manitoba (Winnipeg).
Greenwich Mean Time
GMT is UTC+0. For conversions it equals UTC: the two have stayed within 0.9 seconds of each other, so they agree unless fractions of a second matter. The UK uses GMT only in winter; in summer it is on BST, UTC+1.