JMT to GMT Time Converter

Convert Jamaica Time (JMT) to Greenwich Mean Time (GMT). Both time zones are shown live below; current offset between them is 6 hours ahead.

Kingston · Jamaica Time
23:48:33
Monday, May 11, 2026
EST · UTC-05:00
London · Greenwich Mean Time
05:48:33
Tuesday, May 12, 2026
GMT+1 · UTC+01:00

Convert a specific time

From: JMT (Kingston)
To: GMT (London)
--:--

Daylight Saving status right now

JMT (Jamaica Time)
Observes DST
No
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

Heads up: GMT observes DST while JMT does not. The 6-hour difference shown above will shift by one hour when GMT starts or ends DST.

When can JMT and GMT 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
JMT
GMT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Kingston (JMT). Each row shows the local working-hours state in that zone for the same moment in time.
2 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–10:00 JMT (15:00–16:00 GMT).

Hour-by-hour JMT to GMT conversion table

JMT time (Kingston)GMT time (London)Status
00:00 Mon06:00 MonOff-hours both sides
01:00 Mon07:00 MonOff-hours both sides
02:00 Mon08:00 MonOff-hours both sides
03:00 Mon09:00 MonGMT working
04:00 Mon10:00 MonGMT working
05:00 Mon11:00 MonGMT working
06:00 Mon12:00 MonGMT working
07:00 Mon13:00 MonGMT working
08:00 Mon14:00 MonGMT working
09:00 Mon15:00 MonBoth at work
10:00 Mon16:00 MonBoth at work
11:00 Mon17:00 MonJMT working
12:00 Mon18:00 MonJMT working
13:00 Mon19:00 MonJMT working
14:00 Mon20:00 MonJMT working
15:00 Mon21:00 MonJMT working
16:00 Mon22:00 MonJMT working
17:00 Mon23:00 MonOff-hours both sides
18:00 Mon00:00 TueOff-hours both sides
19:00 Mon01:00 TueOff-hours both sides
20:00 Mon02:00 TueOff-hours both sides
21:00 Mon03:00 TueOff-hours both sides
22:00 Mon04:00 TueOff-hours both sides
23:00 Mon05:00 TueOff-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

Jamaica Time (JMT)
IANA identifier
America/Jamaica
Current UTC offset
UTC-05:00
Current abbreviation
EST
Major cities in this zone
Kingston
Greenwich Mean Time (GMT)
IANA identifier
Europe/London
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
LondonManchesterEdinburghBirmingham

Sun today in Kingston and London

London
Sunrise
05:14
Sunset
20:41
Solar noon
12:58
Daylight
15h 26m

Related converters

GMT to JMT (reverse)JMT to ESTJMT to PSTJMT to UTCJMT to CETJMT to ISTEST to GMTPST to GMTUTC to GMTCET to GMTIST to GMT
Looking for local time? See time in Kingston or time in London.

Frequently asked questions

What is the time difference between JMT and GMT right now?+
GMT (Greenwich Mean Time) is currently 6 hours ahead JMT (Jamaica Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does JMT or GMT observe daylight saving time?+
JMT: does not observe daylight saving time. GMT: observes daylight saving time.
When is the best time to schedule a meeting between JMT and GMT?+
The strongest overlap is 09:00–10:00 JMT (15:00–16:00 GMT), giving 2 hours when both sides are within standard 9am-5pm working hours.
What time is it in London when it is 12:00 noon in Kingston?+
When it is 12:00 Mon in Kingston (JMT), it is 18:00 Mon in London (GMT).
Which IANA time zone identifiers are used for JMT and GMT?+
JMT maps to "America/Jamaica" in the IANA database. GMT maps to "Europe/London". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Kingston ahead of or behind London?+
Whether Kingston (JMT) is ahead of or behind London (GMT) depends on the current UTC offsets. Right now GMT is 6 hours ahead JMT. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for JMT and GMT?+
JMT is UTC-05:00 (EST) and GMT is UTC+01:00 (GMT+1). 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 JMT and GMT?+
Yes. There are 2 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–10:00 JMT.