MeetingTimePro

EST to GMT converter

Eastern Time to Greenwich Mean Time. GMT is 5 h ahead of EST in January and 4 h ahead in July.

From

EST · New York EDT · UTC−4

  • GMT · GMTUTC · UTC+0 · 4 h ahead
    13:00Mon, Sep 28
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The gap between EST and GMT

2026EST clocksGMT clocksDifference
JanuaryEST UTC−5UTC UTC+05 h ahead
JulyEDT UTC−4UTC UTC+04 h ahead

The gap changes on: Sun, March 8, 2026 (4 h ahead); Sun, November 1, 2026 (5 h ahead); Sun, March 14, 2027 (4 h ahead); Sun, November 7, 2027 (5 h ahead).

Convert the other way: GMT to EST · Plan a meeting across more places

EST to GMT time table

Every hour of the EST day and the matching GMT time, for a mid-January and a mid-July date.

ESTGMT · JanuaryGMT · July
12:00 AM5:00 AM4:00 AM
1:00 AM6:00 AM5:00 AM
2:00 AM7:00 AM6:00 AM
3:00 AM8:00 AM7:00 AM
4:00 AM9:00 AM8:00 AM
5:00 AM10:00 AM9:00 AM
6:00 AM11:00 AM10:00 AM
7:00 AM12:00 PM11:00 AM
8:00 AM1:00 PM12:00 PM
9:00 AM2:00 PM1:00 PM
10:00 AM3:00 PM2:00 PM
11:00 AM4:00 PM3:00 PM
12:00 PM5:00 PM4:00 PM
1:00 PM6:00 PM5:00 PM
2:00 PM7:00 PM6:00 PM
3:00 PM8:00 PM7:00 PM
4:00 PM9:00 PM8:00 PM
5:00 PM10:00 PM9:00 PM
6:00 PM11:00 PM10:00 PM
7:00 PM12:00 AM (+1 day)11:00 PM
8:00 PM1:00 AM (+1 day)12:00 AM (+1 day)
9:00 PM2:00 AM (+1 day)1:00 AM (+1 day)
10:00 PM3:00 AM (+1 day)2:00 AM (+1 day)
11:00 PM4:00 AM (+1 day)3:00 AM (+1 day)

About these two clocks

EST — Eastern Time. Used in New York, Toronto, Miami, Atlanta. Strictly, EST is the winter name; from March to November the same clocks show EDT (UTC−4). This page follows the clocks, so summer dates use EDT.

GMT — Greenwich Mean Time. Used in UTC+0; the UK uses it in winter only. GMT itself never shifts. The UK leaves GMT for BST (UTC+1) from late March to late October, so “London time” and GMT differ in summer.

All figures on this page come from the IANA time zone database (the same data your phone and laptop use), evaluated for the date in question. Abbreviations are ambiguous — “IST” also means Irish or Israel Standard Time, and “CST” is China Standard Time in Asia — so this page uses America/New_York and Etc/GMT explicitly.

Questions people ask

How many hours ahead or behind is GMT compared with EST?

GMT is 5 h ahead of EST in January and 4 h ahead in July. The gap moves because daylight saving time starts and ends on different dates (or not at all) in the two places.

What is 9 am EST in GMT?

On a January date, 9:00 am EST is 2:00 PM GMT. In July it is 1:00 PM. Use the converter above for any other date.

Which cities use EST?

Eastern Time (EST) is used in New York, Toronto, Miami, Atlanta. Strictly, EST is the winter name; from March to November the same clocks show EDT (UTC−4). This page follows the clocks, so summer dates use EDT.

Which cities use GMT?

Greenwich Mean Time (GMT) is used in UTC+0; the UK uses it in winter only. GMT itself never shifts. The UK leaves GMT for BST (UTC+1) from late March to late October, so “London time” and GMT differ in summer.

When is a good time for a EST–GMT call?

Look for the hours where both columns in the table fall between about 8 am and 6 pm. If none exist, the meeting planner on our home page shows the least-bad options and lets you share a link that converts for every attendee.

Related conversions

EST to ISTEST to CSTEST to PSTEST to UTCEST to MSTIST to GMTPST to GMTUTC to GMTEST to CETEST to BST