CET to London to ET to CST Time Converter
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8:15 am08:15 CET (UTC+1), Dec 15, 2025 = 7:15 am07:15 GMT (UTC+0), Dec 15, 2025 = 2:15 am02:15 ET (UTC-5), Dec 15, 2025 = 1:15 am01:15 CST (UTC-6), Dec 15, 2025
CET is 1 hour ahead of London. CET is 6 hours ahead of ET. CET is 7 hours ahead of CST.
How the time difference changes
CET to London
For most of the year, CEST is 1 hour ahead of London. From Oct 25, 2026 to Mar 28, 2027, CET is 1 hour ahead of London.
For most of the year, working hours of 9:00 am to 6:00 pm in CEST correspond to 8:00 am to 5:00 pm in London. At other times of the year, working hours of 9:00 am to 6:00 pm in CET correspond to 8:00 am to 5:00 pm in London.For most of the year, working hours of 09:00 to 18:00 in CEST correspond to 08:00 to 17:00 in London. At other times of the year, working hours of 09:00 to 18:00 in CET correspond to 08:00 to 17:00 in London.
CET to ET
For most of the year, CEST is 6 hours ahead of ET. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, CET is 5 hours ahead of ET. From Nov 1, 2026 to Mar 14, 2027, CET is 6 hours ahead of ET.
For most of the year, working hours of 9:00 am to 6:00 pm in CEST correspond to 3:00 am to 12:00 pm in ET. At other times of the year, working hours of 9:00 am to 6:00 pm in CET correspond to 3:00 am to 12:00 pm in ET or working hours of 9:00 am to 6:00 pm in CET correspond to 4:00 am to 1:00 pm in ET.For most of the year, working hours of 09:00 to 18:00 in CEST correspond to 03:00 to 12:00 in ET. At other times of the year, working hours of 09:00 to 18:00 in CET correspond to 03:00 to 12:00 in ET or working hours of 09:00 to 18:00 in CET correspond to 04:00 to 13:00 in ET.
CET to CST
For most of the year, CEST is 7 hours ahead of CDT. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, CET is 6 hours ahead of CDT. From Nov 1, 2026 to Mar 14, 2027, CET is 7 hours ahead of CST.
For most of the year, working hours of 9:00 am to 6:00 pm in CEST correspond to 2:00 am to 11:00 am in CDT. At other times of the year, working hours of 9:00 am to 6:00 pm in CET correspond to 2:00 am to 11:00 am in CST or working hours of 9:00 am to 6:00 pm in CET correspond to 3:00 am to 12:00 pm in CDT.For most of the year, working hours of 09:00 to 18:00 in CEST correspond to 02:00 to 11:00 in CDT. At other times of the year, working hours of 09:00 to 18:00 in CET correspond to 02:00 to 11:00 in CST or working hours of 09:00 to 18:00 in CET correspond to 03:00 to 12:00 in CDT.
Compare CET time with London, ET, and CST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Central European Time is 1 hour ahead of GMT (Greenwich Mean Time). Central European Time is 6 hours ahead of Eastern Time. Central European Time is 7 hours ahead of Central Standard Time.
8:15 am08:15 in CET is 7:15 am07:15 in London, United Kingdom and is 2:15 am02:15 in ET and is 1:15 am01:15 in CST
CET to London call time
Best time for a conference call or a meeting is between 10am-6pm10:00-18:00 in CET which corresponds to 9am-5pm09:00-17:00 in London
CET to ET call time
Best time for a conference call or a meeting is between 3pm-6pm15:00-18:00 in CET which corresponds to 9am-12pm09:00-12:00 in ET
CET to CST call time
Best time for a conference call or a meeting is between 4pm-6pm16:00-18:00 in CET which corresponds to 9am-11am09:00-11:00 in CST
8:15 am08:15 Central European Time (CET). Offset UTC +1:00 hour
7:15 am07:15 GMT (Greenwich Mean Time) (London, United Kingdom). Offset UTC 0:00 hours
2:15 am02:15 Eastern Time (ET). Offset UTC -5:00 hours
1:15 am01:15 Central Standard Time (CST). Offset UTC -6:00 hours
8:15 am08:15 CET / 7:15 am07:15 London, United Kingdom / 2:15 am02:15 ET / 1:15 am01:15 CST
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.
| CET | London, United Kingdom | ET | CST |
|---|---|---|---|
| 11:00pm previous day | 6:00pm previous day | 5:00pm previous day | |
| 12:00am | 7:00pm previous day | 6:00pm previous day | |
| 1:00am | 8:00pm previous day | 7:00pm previous day | |
| 2:00am | 9:00pm previous day | 8:00pm previous day | |
| 3:00am | 10:00pm previous day | 9:00pm previous day | |
| 4:00am | 11:00pm previous day | 10:00pm previous day | |
| 5:00am | 12:00am | 11:00pm previous day | |
| 6:00am | 1:00am | 12:00am | |
| 7:00am | 2:00am | 1:00am | |
| 8:00am | 3:00am | 2:00am | |
| 9:00am | 4:00am | 3:00am | |
| 10:00am | 5:00am | 4:00am | |
| 11:00am | 6:00am | 5:00am | |
| 12:00pm | 7:00am | 6:00am | |
| 1:00pm | 8:00am | 7:00am | |
| 2:00pm | 9:00am | 8:00am | |
| 3:00pm | 10:00am | 9:00am | |
| 4:00pm | 11:00am | 10:00am | |
| 5:00pm | 12:00pm | 11:00am | |
| 6:00pm | 1:00pm | 12:00pm | |
| 7:00pm | 2:00pm | 1:00pm | |
| 8:00pm | 3:00pm | 2:00pm | |
| 9:00pm | 4:00pm | 3:00pm | |
| 10:00pm | 5:00pm | 4:00pm | |
| 23:00 previous day | 18:00 previous day | 17:00 previous day | |
| 00:00 | 19:00 previous day | 18:00 previous day | |
| 01:00 | 20:00 previous day | 19:00 previous day | |
| 02:00 | 21:00 previous day | 20:00 previous day | |
| 03:00 | 22:00 previous day | 21:00 previous day | |
| 04:00 | 23:00 previous day | 22:00 previous day | |
| 05:00 | 00:00 | 23:00 previous day | |
| 06:00 | 01:00 | 00:00 | |
| 07:00 | 02:00 | 01:00 | |
| 08:00 | 03:00 | 02:00 | |
| 09:00 | 04:00 | 03:00 | |
| 10:00 | 05:00 | 04:00 | |
| 11:00 | 06:00 | 05:00 | |
| 12:00 | 07:00 | 06:00 | |
| 13:00 | 08:00 | 07:00 | |
| 14:00 | 09:00 | 08:00 | |
| 15:00 | 10:00 | 09:00 | |
| 16:00 | 11:00 | 10:00 | |
| 17:00 | 12:00 | 11:00 | |
| 18:00 | 13:00 | 12:00 | |
| 19:00 | 14:00 | 13:00 | |
| 20:00 | 15:00 | 14:00 | |
| 21:00 | 16:00 | 15:00 | |
| 22:00 | 17:00 | 16:00 |
Central European Time
Offset: CET is 1 hour ahead of Greenwich Mean Time (GMT).
Countries using this time zone: Albania, Algeria, 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, Tunisia, Vatican City
Principal Cities: The largest city in the CET time zone is Berlin in Germany, with about 3.426 million people. Other major cities in this time zone include Madrid, Algiers, Rome, Paris.
German: MEZ - Mitteleuropäische Zeit
On December 15, 2025 all shaded areas are on CET.
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central European Summer Time (CEST).
Start: Central European Time (CET) started on Sunday, October 26, 2025 at 3:00 am03:00 local time and clocks were set one hour back to Sunday, October 26, 2025, 2:00 am02:00. Standard time starts annually on the last Sunday of October.
End: Central European Time (CET) ends on Sunday, March 29, 2026 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 29, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Sunday of March.
CET representations, usage and related time zones
- +01 - basic short
- +0100 - basic
- +01:00 - extended
- +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates an offset of one hour to the east of the zero meridian.
- Alpha - Military abbreviation for CET
- A - short form of 'Alpha'
- Africa/Algiers
- Africa/Ceuta
- Africa/Tunis
- 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
- BST - British Summer Time
- CET - Central European Time
- IST - Irish Standard Time
- WEST - Western European Summer Time
- A - Alpha Time Zone
- CET - Central European Time
- MEZ - Mitteleuropäische Zeit
- WAT - West Africa Time
- WST - Western Sahara Summer Time
- BMT - Biel Mean Time
London Time Zone and Facts
Time Zone
GMT – Greenwich Mean Time, UTC+0 (standard time)
London Facts
Eastern Time
Eastern Time (ET) is a general term used to describe the areas that observe either the Eastern Standard Time (EST) or Eastern Daylight Time (EDT) in the United States and Canada. ET is not static but switches between EDT and EST.
ET is also used somewhat as a de facto official time for all of the United States because it encompasses 17 U.S. states in the eastern part of the contiguous United States including the capital city Washington D.C., the most populous city New York and half of the country’s population.
In the United States nationally televised programs, evening newscasts, talent and awards shows, and any other nationally televised event that airs live on American television during prime time and on the weekends are broadcast live in the Eastern Time Zone. Major professional sports leagues MLB, NBA, NFL and NHL also provide their game times in Eastern Time, even if teams are from outside of Eastern Time.
Countries using this time zone: Bahamas, Canada, Cayman Islands, Haiti, Jamaica, Mexico, Panama, Turks and Caicos Islands, United States
Principal Cities: The largest city in the ET 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: HNE - Heure Normale de l'Est
Spanish: ET - Tiempo del Este, ET - Zona Sureste
On December 15, 2025 some of the lighter areas are on UTC−6 (Central Standard Time).
ET representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for ET
- R - short form of 'Romeo'
- Eastern Time - UTC -5
- Tiempo del Este - UTC -5
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
Central Standard Time
Offset: CST is 6 hours behind Greenwich Mean Time (GMT).
Countries using this time zone: Belize, Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, United States
Principal Cities: The largest city in the CST time zone is Mexico City in Mexico, with about 12.294 million people. Other major cities in this time zone include Chicago, Houston, Puebla, Santiago de Querétaro.
French: HNC - Heure Normale du Centre
Spanish: CT - Tiempo Central Estándar, CT - Zona Centro
On December 15, 2025 some shaded areas are on UTC−7 (MST).
Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Central Daylight Time (CDT).
Start: Central Standard Time (CST) started on Sunday, November 2, 2025 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am01:00. Standard time starts annually on the first Sunday of November.
End: Central Standard Time (CST) ends on Sunday, March 8, 2026 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.
See USA daylight saving time and upcoming clock changes worldwide.
CST representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
- Sierra - Military abbreviation for CST
- S - short form of 'Sierra'
- America/Bahia_Banderas
- America/Belize
- America/Chicago
- America/Chihuahua
- America/Costa_Rica
- America/El_Salvador
- America/Guatemala
- America/Indiana/Knox
- America/Indiana/Tell_City
- America/Knox_IN
- America/Managua
- America/Matamoros
- America/Menominee
- America/Merida
- America/Mexico_City
- America/Monterrey
- America/North_Dakota/Beulah
- America/North_Dakota/Center
- America/North_Dakota/New_Salem
- America/Ojinaga
- America/Rainy_River
- America/Rankin_Inlet
- America/Regina
- America/Resolute
- America/Swift_Current
- America/Tegucigalpa
- America/Winnipeg
- CST6CDT
- Canada/Central
- Canada/Saskatchewan
- Mexico/General
- US/Central
- US/Indiana-Starke
- Central Standard Time - UTC -6
- China Standard Time - UTC +8
- Cuba Standard Time - UTC -5
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone