UK Time is 5 hours ahead of Eastern Time right now (until Oct 24, 2026); the gap changes to 4 hours when clocks change for daylight saving time. So 12:00 PM EDT = 5:00 PM BST at the moment. (Eastern Time is on EDT and UK Time is on BST for daylight saving time right now.)
EST to GMT conversion table
| EST | BST when EST is EDT | GMT when EST is EDT |
|---|---|---|
| 12:00 AM | 5:00 AM | 4:00 AM |
| 1:00 AM | 6:00 AM | 5:00 AM |
| 2:00 AM | 7:00 AM | 6:00 AM |
| 3:00 AM | 8:00 AM | 7:00 AM |
| 4:00 AM | 9:00 AM | 8:00 AM |
| 5:00 AM | 10:00 AM | 9:00 AM |
| 6:00 AM | 11:00 AM | 10:00 AM |
| 7:00 AM | 12:00 PM | 11:00 AM |
| 8:00 AM | 1:00 PM | 12:00 PM |
| 9:00 AM | 2:00 PM | 1:00 PM |
| 10:00 AM | 3:00 PM | 2:00 PM |
| 11:00 AM | 4:00 PM | 3:00 PM |
| 12:00 PM | 5:00 PM | 4:00 PM |
| 1:00 PM | 6:00 PM | 5:00 PM |
| 2:00 PM | 7:00 PM | 6:00 PM |
| 3:00 PM | 8:00 PM | 7:00 PM |
| 4:00 PM | 9:00 PM | 8:00 PM |
| 5:00 PM | 10:00 PM | 9:00 PM |
| 6:00 PM | 11:00 PM | 10:00 PM |
| 7:00 PM | 12:00 AM +1 day | 11:00 PM |
| 8:00 PM | 1:00 AM +1 day | 12:00 AM +1 day |
| 9:00 PM | 2:00 AM +1 day | 1:00 AM +1 day |
| 10:00 PM | 3:00 AM +1 day | 2:00 AM +1 day |
| 11:00 PM | 4:00 AM +1 day | 3:00 AM +1 day |
EST and GMT difference through 2027
The gap between the two zones on each date range, including daylight saving time changes:
| Dates | Eastern Time | UK Time | Difference |
|---|---|---|---|
| Sep 30, 2026 – Oct 24, 2026 | EDT (UTC−4) | BST (UTC+1) | GMT 5 hours ahead |
| Oct 25, 2026 – Oct 31, 2026 | EDT (UTC−4) | GMT (UTC+0) | GMT 4 hours ahead |
| Nov 1, 2026 – Mar 13, 2027 | EST (UTC−5) | GMT (UTC+0) | GMT 5 hours ahead |
| Mar 14, 2027 – Mar 27, 2027 | EDT (UTC−4) | GMT (UTC+0) | GMT 4 hours ahead |
| Mar 28, 2027 – Oct 30, 2027 | EDT (UTC−4) | BST (UTC+1) | GMT 5 hours ahead |
| Oct 31, 2027 – Nov 6, 2027 | EDT (UTC−4) | GMT (UTC+0) | GMT 4 hours ahead |
| Nov 7, 2027 – Dec 31, 2027 | EST (UTC−5) | GMT (UTC+0) | GMT 5 hours ahead |
Best time to meet or call
- When GMT is 5 hours ahead of EST: Working hours (9 AM–5 PM) overlap from 9:00 AM–12:00 PM EST (2:00 PM–5:00 PM GMT), about 3 hours.
- When GMT is 4 hours ahead of EST: Working hours (9 AM–5 PM) overlap from 9:00 AM–1:00 PM EST (1:00 PM–5:00 PM GMT), about 4 hours.
About Eastern Time (EST)
The Eastern time zone uses EST (UTC−5) in winter and EDT (UTC−4) during daylight saving time, from the second Sunday in March to the first Sunday in November. It's used in New York, Washington DC, Boston, Atlanta, Miami, Detroit and Toronto.
About UK Time (GMT)
The UK uses GMT (UTC+0) in winter and British Summer Time, BST (UTC+1), from the last Sunday in March to the last Sunday in October. It's used in London, Manchester, Birmingham, Edinburgh, Cardiff and Belfast.
Frequently asked questions
What time is 12 PM EST in GMT?
12:00 PM EDT is 5:00 PM BST right now (Sep 30, 2026 to Oct 24, 2026). The answer changes when either zone changes its clocks for daylight saving time.
How many hours ahead or behind is GMT from EST?
Currently 5 hours ahead of EST. During the year the difference is 5 hours ahead of EST or 4 hours ahead of EST, depending on daylight saving time. See the table on this page for exact dates.
Does EST change for daylight saving time?
Yes. The Eastern time zone uses EST (UTC−5) in winter and EDT (UTC−4) during daylight saving time, from the second Sunday in March to the first Sunday in November.
Does GMT change for daylight saving time?
Yes. The UK uses GMT (UTC+0) in winter and British Summer Time, BST (UTC+1), from the last Sunday in March to the last Sunday in October.
What is the best time for a call between EST and GMT?
Right now, working hours overlap from 9:00 AM–12:00 PM EST (2:00 PM–5:00 PM GMT), about 3 hours.
Is it EST or EDT right now?
Eastern Time uses EST in winter and EDT from the second Sunday in March to the first Sunday in November. The live clock on this page shows which one applies today.
More time zone conversions
- GMT to EST (reverse)
- EST to PST
- EST to CST
- EST to MST
- EST to IST
- IST to GMT
- PST to GMT
- EST to UTC
- EST to CET
- All time zones
Sources
Reviewed by Gurmej Singh, Founder, Divy Digital Hub · Last reviewed: Wednesday, September 30, 2026. All calculations run in your browser. Editorial policy.