Updating current time…
GMT
Greenwich Mean Time
GMT +0
12am
3am
6am
9am
12pm
3pm
6pm
9pm
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.

Iceland and Ghana stay on GMT (UTC+0).

IDT/IST
Israel Daylight Time
GMT +3
12am
3am
6am
9am
12pm
3pm
6pm
9pm
IST is not used on this date.

This converter uses IDT (UTC+3), as in Jerusalem.

Quick answers

Selected conversion

12:00 pm12:00 GMT (UTC+0), Oct 5, 2026 = 3:00 pm15:00 IDT (UTC+3), Oct 5, 2026

GMT is 3 hours behind IDT.

GMT and IST examples

These examples always use GMT (UTC+0) and IST (UTC+2). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

GMT is 2 hours behind IST.

How the time difference changes

For most of the year, GMT is 3 hours behind IDT Israel. At other times of the year, GMT is 2 hours behind IST Israel.

For most of the year, working hours of 9:00 am to 5:00 pm in GMT correspond to 12:00 pm to 8:00 pm in IDT Israel. At other times of the year, working hours of 9:00 am to 5:00 pm in GMT correspond to 11:00 am to 7:00 pm in IST Israel.For most of the year, working hours of 09:00 to 17:00 in GMT correspond to 12:00 to 20:00 in IDT Israel. At other times of the year, working hours of 09:00 to 17:00 in GMT correspond to 11:00 to 19:00 in IST Israel.

Compare GMT time with IST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Greenwich Mean Time is 3 hours behind Israel Daylight Time.
12:00 pm12:00 in GMT is 3:00 pm15:00 in IDT

GMT to IDT call time
Best time for a conference call or a meeting is between 9am-2pm09:00-14:00 in GMT which corresponds to 12pm-5pm12:00-17:00 in IDT

12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
3:00 pm15:00 Israel Daylight Time (IDT). Offset UTC +3:00 hours

12:00 pm12:00 GMT / 3:00 pm15:00 IDT

GMTIDT
12:00am3:00am
1:00am4:00am
2:00am5:00am
3:00am6:00am
4:00am7:00am
5:00am8:00am
6:00am9:00am
7:00am10:00am
8:00am11:00am
9:00am12:00pm
10:00am1:00pm
11:00am2:00pm
12:00pm3:00pm
1:00pm4:00pm
2:00pm5:00pm
3:00pm6:00pm
4:00pm7:00pm
5:00pm8:00pm
6:00pm9:00pm
7:00pm10:00pm
8:00pm11:00pm
9:00pm12:00am
10:00pm1:00am
11:00pm2:00am
00:0003:00
01:0004:00
02:0005:00
03:0006:00
04:0007:00
05:0008:00
06:0009:00
07:0010:00
08:0011:00
09:0012:00
10:0013:00
11:0014:00
12:0015:00
13:0016:00
14:0017:00
15:0018:00
16:0019:00
17:0020:00
18:0021:00
19:0022:00
20:0023:00
21:0000:00
22:0001:00
23:0002:00

Greenwich Mean Time

Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Burkina Faso, Côte d'Ivoire, Britain (UK), Guernsey, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Ireland, Isle of Man, Iceland, Jersey, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo

Principal Cities: The largest city in the GMT time zone is London in United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Dakar, Kumasi.

Greenwich Mean Time (GMT) originally referred to the mean solar time at the Royal Observatory in Greenwich, London. It is now often used to refer to Coordinated Universal Time (UTC) when this is viewed as a time zone, and in casual use for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

GMT Time Zone Geo Map
GMT timezone map

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Abidjan
  • Africa/Accra
  • Africa/Bamako
  • Africa/Banjul
  • Africa/Bissau
  • Africa/Conakry
  • Africa/Dakar
  • Africa/Freetown
  • Africa/Lome
  • Africa/Monrovia
  • Africa/Nouakchott
  • Africa/Ouagadougou
  • Africa/Sao_Tome
  • Africa/Timbuktu
  • America/Danmarkshavn
  • Atlantic/Reykjavik
  • Atlantic/St_Helena
  • Eire
  • Etc/GMT
  • Etc/GMT+0
  • Etc/GMT-0
  • Etc/GMT0
  • Etc/Greenwich
  • Europe/Belfast
  • Europe/Dublin
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
  • GMT
  • GMT+0
  • GMT-0
  • GMT0
  • Greenwich
  • Iceland
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Israel Standard Time

Offset: IST is 2 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Israel

Principal Cities: The largest city in the IST time zone is Jerusalem in Israel, with about 971,800 people. Other major cities in this time zone include Tel Aviv, West Jerusalem, Haifa, Ashdod.

IST Time Zone Geo Map
IST timezone map

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Israel Daylight Time (IDT).

Daylight saving time clock moves forward for one hourEnd: Israel Standard Time (IST) ended on Friday, March 27, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Friday, March 27, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Friday of March.

Daylight saving time clock moves back for one hourStart: Israel Standard Time (IST) starts on Sunday, October 25, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 1:00 am01:00. Standard time starts annually on the last Sunday of October.

See upcoming clock changes worldwide.

IST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0200 - sign character (+) followed by a four digit time providing hours (02) and minutes (00) of the offset. Indicates an offset of two hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for IST
  • B - short form of 'Bravo'
IANA/Olson: Reflects IST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Jerusalem
  • Asia/Tel_Aviv
  • Israel
IST Abbreviation: Several time zones share IST abbreviation and it could refer to these time zones
  • India Standard Time - UTC +5:30
  • Irish Standard Time - UTC +1
  • Israel Standard Time - UTC +2
Time zones with the GMT +2 offset:
  • CEST - Central European Summer Time
  • EET - Eastern European Time
  • MESZ - Mitteleuropäische Sommerzeit
  • B - Bravo Time Zone
  • CAT - Central Africa Time
  • IST - Israel Standard Time
  • SAST - South Africa Standard Time
  • WAST - West Africa Summer Time