TimezoneToolbox

GMT to EST converter

EST is usually 4 h behind GMT. It is 5 h behind GMT 1 Jan–8 Mar and 1 Nov–31 Dec 2026, because of daylight saving time.

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GMT to EST table

For 5 July 2026, when EST is 4 h behind GMT. Other dates: see the table on the right.

GMTEST24-hour
12:00 AM8:00 PM prev. day0:00 → 20:00
1:00 AM9:00 PM prev. day1:00 → 21:00
2:00 AM10:00 PM prev. day2:00 → 22:00
3:00 AM11:00 PM prev. day3:00 → 23:00
4:00 AM12:00 AM 4:00 → 0:00
5:00 AM1:00 AM 5:00 → 1:00
6:00 AM2:00 AM 6:00 → 2:00
7:00 AM3:00 AM 7:00 → 3:00
8:00 AM4:00 AM 8:00 → 4:00
9:00 AM5:00 AM 9:00 → 5:00
10:00 AM6:00 AM 10:00 → 6:00
11:00 AM7:00 AM 11:00 → 7:00
12:00 PM8:00 AM 12:00 → 8:00
1:00 PM9:00 AM 13:00 → 9:00
2:00 PM10:00 AM 14:00 → 10:00
3:00 PM11:00 AM 15:00 → 11:00
4:00 PM12:00 PM 16:00 → 12:00
5:00 PM1:00 PM 17:00 → 13:00
6:00 PM2:00 PM 18:00 → 14:00
7:00 PM3:00 PM 19:00 → 15:00
8:00 PM4:00 PM 20:00 → 16:00
9:00 PM5:00 PM 21:00 → 17:00
10:00 PM6:00 PM 22:00 → 18:00
11:00 PM7:00 PM 23:00 → 19:00

When the difference changes

Computed from the IANA tz database (release 2026c). Governments can change these rules; the live converter uses your browser’s own copy of the database.

2026: from (UTC)until (UTC)EST vs GMT
1 January 20268 March 20265 h behind
8 March 20261 November 20264 h behind
1 November 202631 December 20265 h behind
2027: from (UTC)until (UTC)EST vs GMT
1 January 202714 March 20275 h behind
14 March 20277 November 20274 h behind
7 November 202731 December 20275 h behind

GMT: Greenwich Mean Time · GMT time now
GMT here means the fixed UTC+0 offset. The UK only uses GMT in winter; in summer London is on BST (UTC+1).

EST: Eastern Time · EST time now
Strictly, EST is the winter offset (UTC−5). From March to November the same clocks run on EDT (UTC−4). Most people who search "EST" mean whatever the US East Coast clocks show, so this page follows America/New_York.

Related converters

Questions

What is the time difference between GMT and EST?

EST is usually 4 h behind GMT. It is 5 h behind GMT 1 Jan–8 Mar and 1 Nov–31 Dec 2026, because of daylight saving time.

What is 9 am GMT in EST?

9:00 am GMT is 5:00 AM EST, on dates when the usual difference applies. Use the converter above for any specific date.

Which GMT does this page use?

GMT here means the fixed UTC+0 offset. The UK only uses GMT in winter; in summer London is on BST (UTC+1).

Which EST does this page use?

Strictly, EST is the winter offset (UTC−5). From March to November the same clocks run on EDT (UTC−4). Most people who search "EST" mean whatever the US East Coast clocks show, so this page follows America/New_York.