How to use the GMT to EST Converter
- Enter a GMT time. Set the date and time in UK time (GMT/BST).
- Read the EST time. The Eastern Time equivalent appears instantly, with DST notes.
- Compare more cities. Add cities to the hour grid or click an hour to convert it.
UK time (GMT/BST) vs Eastern Time time difference in 2026
| Dates (2026) | ET vs UK time |
|---|---|
| Jan 1 – Mar 7 | −5 hours |
| Mar 8 – Mar 28 | −4 hours |
| Mar 29 – Oct 24 | −5 hours |
| Oct 25 – Oct 31 | −4 hours |
| Nov 1 – Dec 31 | −5 hours |
The difference changes 4 times in 2026 because the two zones switch daylight saving time on different dates.
GMT to EST conversion table (October 12, 2026)
| UK time (BST) | ET (EDT) |
|---|---|
| 12:00 AM | 7:00 PM (−1 day) |
| 1:00 AM | 8:00 PM (−1 day) |
| 2:00 AM | 9:00 PM (−1 day) |
| 3:00 AM | 10:00 PM (−1 day) |
| 4:00 AM | 11:00 PM (−1 day) |
| 5:00 AM | 12:00 AM |
| 6:00 AM | 1:00 AM |
| 7:00 AM | 2:00 AM |
| 8:00 AM | 3:00 AM |
| 9:00 AM | 4:00 AM |
| 10:00 AM | 5:00 AM |
| 11:00 AM | 6:00 AM |
| 12:00 PM | 7:00 AM |
| 1:00 PM | 8:00 AM |
| 2:00 PM | 9:00 AM |
| 3:00 PM | 10:00 AM |
| 4:00 PM | 11:00 AM |
| 5:00 PM | 12:00 PM |
| 6:00 PM | 1:00 PM |
| 7:00 PM | 2:00 PM |
| 8:00 PM | 3:00 PM |
| 9:00 PM | 4:00 PM |
| 10:00 PM | 5:00 PM |
| 11:00 PM | 6:00 PM |
Highlighted rows fall within 9 AM–5 PM in both zones. Times for other dates may differ around DST changes; use the converter above.
What your results mean
In this page’s name, GMT stands for UK time (GMT/BST) (Europe/London) and EST for Eastern Time (America/New_York); the labels are used year-round as search terms. The converter uses each zone’s rules for the date you pick, so it shows BST or EDT automatically when daylight saving time applies.
Tips
- UK time (GMT/BST) is used in the United Kingdom; Ireland uses the same clock times.
- Eastern Time is used in New York, Florida, Georgia, the Eastern Seaboard, Ontario and Quebec.
- Also see PST to EST, EST to PST, CST to EST, EST to CST.
Frequently asked questions
What is the time difference between GMT and EST?
As of October 12, 2026, Eastern Time is 5 hours behind UK time (BST) (BST UTC+1 vs EDT UTC−4). The difference stays the same all year.
What is 9 AM GMT in EST?
On October 12, 2026, 9:00 AM UK time (BST) is 4:00 AM ET (EDT). The result can shift by an hour on dates when only one side is on daylight saving time; the converter above uses the rules for the date you pick.
Does GMT observe daylight saving time?
Yes. UK time (GMT/BST) switches between GMT (UTC+0) and BST (UTC+1); in 2026 clocks change on March 29 at 1:00 AM and October 25 at 2:00 AM local time.
Does EST observe daylight saving time?
Yes. Eastern Time switches between EST (UTC−5) and EDT (UTC−4); in 2026 clocks change on March 8 at 2:00 AM and November 1 at 2:00 AM local time.
When do GMT and EST business hours overlap?
On October 12, 2026, 9-to-5 hours overlap from 2:00 PM to 5:00 PM UK time (BST) (3 hours).
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