GMT to CEST to EDT Time Converter
The United Kingdom is on summer time: BST (UTC+1) until Sun, Oct 25.
Iceland and Ghana stay on GMT (UTC+0).
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Selected conversion
12:00 pm12:00 GMT (UTC+0), Oct 20, 2026 = 2:00 pm14:00 CEST (UTC+2), Oct 20, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 20, 2026
GMT is 2 hours behind CEST. GMT is 4 hours ahead of EDT.
How the time difference changes
GMT to CEST
For most of the year, GMT is 2 hours behind CEST. From Oct 25, 2026 to Mar 28, 2027, GMT is 1 hour behind CET.
For most of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 11:00 am to 8:00 pm in CEST. At other times of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 10:00 am to 7:00 pm in CET.For most of the year, working hours of 09:00 to 18:00 in GMT correspond to 11:00 to 20:00 in CEST. At other times of the year, working hours of 09:00 to 18:00 in GMT correspond to 10:00 to 19:00 in CET.
GMT to EDT
For most of the year, GMT is 4 hours ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, GMT is 5 hours ahead of EST.
For most of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 5:00 am to 2:00 pm in EDT. At other times of the year, working hours of 9:00 am to 6:00 pm in GMT correspond to 4:00 am to 1:00 pm in EST.For most of the year, working hours of 09:00 to 18:00 in GMT correspond to 05:00 to 14:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in GMT correspond to 04:00 to 13:00 in EST.
Compare GMT time with CEST and EDT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Greenwich Mean Time is 2 hours behind Central European Summer Time. Greenwich Mean Time is 4 hours ahead of Eastern Daylight Time.
12:00 pm12:00 in GMT is 2:00 pm14:00 in CEST and is 8:00 am08:00 in EDT
GMT to CEST call time
Best time for a conference call or a meeting is between 9am-4pm09:00-16:00 in GMT which corresponds to 11am-6pm11:00-18:00 in CEST
GMT to EDT call time
Best time for a conference call or a meeting is between 1pm-6pm13:00-18:00 in GMT which corresponds to 9am-2pm09:00-14:00 in EDT
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
12:00 pm12:00 GMT / 2:00 pm14:00 CEST / 8:00 am08:00 EDT
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
| GMT | CEST | EDT |
|---|---|---|
| 2:00am | 8:00pm previous day | |
| 3:00am | 9:00pm previous day | |
| 4:00am | 10:00pm previous day | |
| 5:00am | 11:00pm previous day | |
| 6:00am | 12:00am | |
| 7:00am | 1:00am | |
| 8:00am | 2:00am | |
| 9:00am | 3:00am | |
| 10:00am | 4:00am | |
| 11:00am | 5:00am | |
| 12:00pm | 6:00am | |
| 1:00pm | 7:00am | |
| 2:00pm | 8:00am | |
| 3:00pm | 9:00am | |
| 4:00pm | 10:00am | |
| 5:00pm | 11:00am | |
| 6:00pm | 12:00pm | |
| 7:00pm | 1:00pm | |
| 8:00pm | 2:00pm | |
| 9:00pm | 3:00pm | |
| 10:00pm | 4:00pm | |
| 11:00pm | 5:00pm | |
| 12:00am next day | 6:00pm | |
| 1:00am next day | 7:00pm | |
| 02:00 | 20:00 previous day | |
| 03:00 | 21:00 previous day | |
| 04:00 | 22:00 previous day | |
| 05:00 | 23:00 previous day | |
| 06:00 | 00:00 | |
| 07:00 | 01:00 | |
| 08:00 | 02:00 | |
| 09:00 | 03:00 | |
| 10:00 | 04:00 | |
| 11:00 | 05:00 | |
| 12:00 | 06:00 | |
| 13:00 | 07:00 | |
| 14:00 | 08:00 | |
| 15:00 | 09:00 | |
| 16:00 | 10:00 | |
| 17:00 | 11:00 | |
| 18:00 | 12:00 | |
| 19:00 | 13:00 | |
| 20:00 | 14:00 | |
| 21:00 | 15:00 | |
| 22:00 | 16:00 | |
| 23:00 | 17:00 | |
| 00:00 next day | 18:00 | |
| 01:00 next day | 19:00 |
Greenwich Mean Time
Offset: GMT is the same as Greenwich Mean Time (GMT).
Countries using this time zone: Antarctica, Burkina Faso, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Togo, United Kingdom, Western Sahara
Principal Cities: The largest city in the GMT time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.
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 the two are the same. In the military, GMT is known as Zulu time. Greenwich Mean Time was the same as Universal Time (UT), a standard astronomical concept used in many technical fields, until the introduction of UTC in 1972.
Today the lighter areas are on UTC+1 (British Summer Time, Irish Standard Time).
GMT representations, usage and related time zones
- Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
- +00 - basic short
- +0000 - basic
- +00:00 - extended
- +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
- Zulu - Military abbreviation for GMT
- Z - short form of 'Zulu'
- 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
- EGST - Eastern Greenland Summer Time
- GMT - Greenwich Mean Time
- WET - Western European Time
- AZOST - Azores Summer Time
- UTC - Coordinated Universal Time
- WT - Western Sahara Standard Time
- Z - Zulu Time Zone
Central European Summer Time
Offset: CEST is 2 hours ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Albania, Andorra, Austria, Belgium, Bosnia and Herzegovina, Croatia, Czechia, Denmark, France, Germany, Gibraltar, Hungary, Italy, Kosovo, Liechtenstein, Luxembourg, Malta, Monaco, Montenegro, Netherlands, North Macedonia, Norway, Poland, San Marino, Serbia, Slovakia, Slovenia, Spain, Svalbard and Jan Mayen, Sweden, Switzerland, Vatican City
Principal Cities: The largest city in the CEST time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Rome, Paris, Hamburg.
German: MESZ - Mitteleuropäische Sommerzeit
Today all shaded areas are on CEST.
Daylight Saving: Central European Summer Time (CEST) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Central European Time (CET).
Start: Central European Summer Time (CEST) started on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am03:00. Daylight saving starts annually on the last Sunday of March.
End: Central European Summer Time (CEST) ends on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.
CEST representations, usage and related time zones
- +02 - basic short
- +0200 - basic
- +02:00 - extended
- +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.
- Bravo - Military abbreviation for CEST
- B - short form of 'Bravo'
- Africa/Ceuta
- Arctic/Longyearbyen
- Atlantic/Jan_Mayen
- CET
- Europe/Amsterdam
- Europe/Andorra
- Europe/Belgrade
- Europe/Berlin
- Europe/Bratislava
- Europe/Brussels
- Europe/Budapest
- Europe/Busingen
- Europe/Copenhagen
- Europe/Gibraltar
- Europe/Ljubljana
- Europe/Luxembourg
- Europe/Madrid
- Europe/Malta
- Europe/Monaco
- Europe/Oslo
- Europe/Paris
- Europe/Podgorica
- Europe/Prague
- Europe/Rome
- Europe/San_Marino
- Europe/Sarajevo
- Europe/Skopje
- Europe/Stockholm
- Europe/Tirane
- Europe/Vaduz
- Europe/Vatican
- Europe/Vienna
- Europe/Warsaw
- Europe/Zagreb
- Europe/Zurich
- MET
- Poland
- 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
Eastern Daylight Time
Offset: EDT is 4 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Bahamas, Canada, Haiti, Turks and Caicos Islands, United States
Principal Cities: The largest city in the EDT time zone is New York City in the United States, with about 8.804 million people. Other major cities in this time zone include Toronto, Montréal, Philadelphia, Port-au-Prince.
French: HAE - Heure Avancée de l'Est
Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste
Today all shaded areas are on EDT.
Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Eastern Standard Time (EST).
Start: Eastern Daylight Time (EDT) started on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, March 8, 2026, 3:00 am03:00. Daylight saving starts annually on the second Sunday of March.
End: Eastern Daylight Time (EDT) ends on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks are set one hour back to Sunday, November 1, 2026, 1:00 am01:00 local standard time instead. Daylight saving ends annually on the first Sunday of November.
See USA daylight saving time and upcoming clock changes worldwide.
EDT representations, usage and related time zones
- -04 - basic short
- -0400 - basic
- -04:00 - extended
- -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
- Quebec - Military abbreviation for EDT
- Q - short form of 'Quebec'
- America/Detroit
- America/Fort_Wayne
- America/Grand_Turk
- America/Indiana/Indianapolis
- America/Indiana/Marengo
- America/Indiana/Petersburg
- America/Indiana/Vevay
- America/Indiana/Vincennes
- America/Indiana/Winamac
- America/Indianapolis
- America/Iqaluit
- America/Kentucky/Louisville
- America/Kentucky/Monticello
- America/Louisville
- America/Montreal
- America/Nassau
- America/New_York
- America/Nipigon
- America/Pangnirtung
- America/Port-au-Prince
- America/Thunder_Bay
- America/Toronto
- Canada/Eastern
- EST5EDT
- US/East-Indiana
- US/Eastern
- US/Michigan
- AST - Atlantic Standard Time
- EDT - Eastern Daylight Time
- AMT - Amazon Time
- BOT - Bolivia Time
- CDT - Cuba Daylight Time
- CLT - Chile Standard Time
- GYT - Guyana Time
- HLV - Hora Legal de Venezuela
- Q - Quebec Time Zone
- VET - Venezuelan Standard Time