GMT to EST Time Converter

Convert Greenwich Mean Time (GMT) to Eastern Standard Time (EST). Both time zones are shown live below; current offset between them is 5 hours behind.

London · Greenwich Mean Time
21:55:26
Sunday, May 10, 2026
GMT+1 · UTC+01:00
New York · Eastern Standard Time
16:55:26
Sunday, May 10, 2026
EDT · UTC-04:00

Convert a specific time

From: GMT (London)
To: EST (New York)
--:--

Daylight Saving status right now

GMT (Greenwich Mean Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-10-25
Offset shift
UTC+01:00 → UTC+00:00
EST (Eastern Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-04:00 → UTC-05:00

When can GMT and EST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
GMT
EST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in London (GMT). Each row shows the local working-hours state in that zone for the same moment in time.
3 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 14:00–16:00 GMT (09:00–11:00 EST).

Hour-by-hour GMT to EST conversion table

GMT time (London)EST time (New York)Status
00:00 Sun19:00 SatOff-hours both sides
01:00 Sun20:00 SatOff-hours both sides
02:00 Sun21:00 SatOff-hours both sides
03:00 Sun22:00 SatOff-hours both sides
04:00 Sun23:00 SatOff-hours both sides
05:00 Sun00:00 SunOff-hours both sides
06:00 Sun01:00 SunOff-hours both sides
07:00 Sun02:00 SunOff-hours both sides
08:00 Sun03:00 SunOff-hours both sides
09:00 Sun04:00 SunGMT working
10:00 Sun05:00 SunGMT working
11:00 Sun06:00 SunGMT working
12:00 Sun07:00 SunGMT working
13:00 Sun08:00 SunGMT working
14:00 Sun09:00 SunBoth at work
15:00 Sun10:00 SunBoth at work
16:00 Sun11:00 SunBoth at work
17:00 Sun12:00 SunEST working
18:00 Sun13:00 SunEST working
19:00 Sun14:00 SunEST working
20:00 Sun15:00 SunEST working
21:00 Sun16:00 SunEST working
22:00 Sun17:00 SunOff-hours both sides
23:00 Sun18:00 SunOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Greenwich Mean Time (GMT)
IANA identifier
Europe/London
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
LondonManchesterEdinburghBirmingham
Eastern Standard Time (EST)
IANA identifier
America/New_York
Current UTC offset
UTC-04:00
Current abbreviation
EDT
Major cities in this zone
New YorkMiamiAtlantaBostonPhiladelphia

Sun today in London and New York

London
Sunrise
05:18
Sunset
20:38
Solar noon
12:58
Daylight
15h 20m
New York
Sunrise
05:45
Sunset
20:02
Solar noon
12:53
Daylight
14h 16m

Related converters

EST to GMT (reverse)GMT to PSTGMT to UTCGMT to CETGMT to ISTGMT to JSTPST to ESTUTC to ESTCET to ESTIST to ESTJST to EST
Looking for local time? See time in London or time in New York.

Frequently asked questions

What is the time difference between GMT and EST right now?+
EST (Eastern Standard Time) is currently 5 hours behind GMT (Greenwich Mean Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does GMT or EST observe daylight saving time?+
GMT: observes daylight saving time. EST: observes daylight saving time.
When is the best time to schedule a meeting between GMT and EST?+
The strongest overlap is 14:00–16:00 GMT (09:00–11:00 EST), giving 3 hours when both sides are within standard 9am-5pm working hours.
What time is it in New York when it is 12:00 noon in London?+
When it is 12:00 Sun in London (GMT), it is 07:00 Sun in New York (EST).
Which IANA time zone identifiers are used for GMT and EST?+
GMT maps to "Europe/London" in the IANA database. EST maps to "America/New_York". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is London ahead of or behind New York?+
Whether London (GMT) is ahead of or behind New York (EST) depends on the current UTC offsets. Right now EST is 5 hours behind GMT. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for GMT and EST?+
GMT is UTC+01:00 (GMT+1) and EST is UTC-04:00 (EDT). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both GMT and EST?+
Yes. There are 3 hours of overlap during standard 9am-5pm working hours, with the strongest window at 14:00–16:00 GMT.