ADT to CET Converter
Central Europe is on summer time: CEST (UTC+2) until Sun, Oct 25.
Quick answers
Selected conversion
9:00 am09:00 ADT (UTC-3), Oct 12, 2026 = 2:00 pm14:00 CEST (UTC+2), Oct 12, 2026
ADT is 5 hours behind CEST.
ADT and CET examples
These examples always use ADT (UTC-3) and CET (UTC+1). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.
ADT is 4 hours behind CET.
How the time difference changes
For most of the year, ADT is 5 hours behind CEST. At other times of the year, AST is 5 hours behind CET or ADT is 4 hours behind CET.
For most of the year, working hours of 9:00 am to 5:00 pm in ADT correspond to 2:00 pm to 10:00 pm in CEST. At other times of the year, working hours of 9:00 am to 5:00 pm in AST correspond to 2:00 pm to 10:00 pm in CET or working hours of 9:00 am to 5:00 pm in ADT correspond to 1:00 pm to 9:00 pm in CET.For most of the year, working hours of 09:00 to 17:00 in ADT correspond to 14:00 to 22:00 in CEST. At other times of the year, working hours of 09:00 to 17:00 in AST correspond to 14:00 to 22:00 in CET or working hours of 09:00 to 17:00 in ADT correspond to 13:00 to 21:00 in CET.
Compare ADT time with CET time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Atlantic Daylight Time is 5 hours behind Central European Summer Time.
9:00 am09:00 in ADT is 2:00 pm14:00 in CEST
ADT to CEST call time
Best time for a conference call or a meeting is between 9am-12pm09:00-12:00 in ADT which corresponds to 2pm-5pm14:00-17:00 in CEST
9:00 am09:00 Atlantic Daylight Time (ADT). Offset UTC -3:00 hours
2:00 pm14:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
9:00 am09:00 ADT / 2:00 pm14:00 CEST
| ADT | CEST |
|---|---|
| 12:00am | 5:00am |
| 1:00am | 6:00am |
| 2:00am | 7:00am |
| 3:00am | 8:00am |
| 4:00am | 9:00am |
| 5:00am | 10:00am |
| 6:00am | 11:00am |
| 7:00am | 12:00pm |
| 8:00am | 1:00pm |
| 9:00am | 2:00pm |
| 10:00am | 3:00pm |
| 11:00am | 4:00pm |
| 12:00pm | 5:00pm |
| 1:00pm | 6:00pm |
| 2:00pm | 7:00pm |
| 3:00pm | 8:00pm |
| 4:00pm | 9:00pm |
| 5:00pm | 10:00pm |
| 6:00pm | 11:00pm |
| 7:00pm | 12:00am |
| 8:00pm | 1:00am |
| 9:00pm | 2:00am |
| 10:00pm | 3:00am |
| 11:00pm | 4:00am |
| 00:00 | 05:00 |
| 01:00 | 06:00 |
| 02:00 | 07:00 |
| 03:00 | 08:00 |
| 04:00 | 09:00 |
| 05:00 | 10:00 |
| 06:00 | 11:00 |
| 07:00 | 12:00 |
| 08:00 | 13:00 |
| 09:00 | 14:00 |
| 10:00 | 15:00 |
| 11:00 | 16:00 |
| 12:00 | 17:00 |
| 13:00 | 18:00 |
| 14:00 | 19:00 |
| 15:00 | 20:00 |
| 16:00 | 21:00 |
| 17:00 | 22:00 |
| 18:00 | 23:00 |
| 19:00 | 00:00 |
| 20:00 | 01:00 |
| 21:00 | 02:00 |
| 22:00 | 03:00 |
| 23:00 | 04:00 |
Atlantic Daylight Time
Offset: ADT is 3 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Bermuda, Canada, Greenland
Principal Cities: The largest city in the ADT time zone is Halifax in Canada, with about 471,559 people. Other major cities in this time zone include Sydney, Dartmouth, Moncton, Saint John.
French: HAA - Heure Avancée de l'Atlantique
Daylight Saving: Atlantic Daylight Time (ADT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Atlantic Standard Time (AST).
Start: Atlantic Daylight Time (ADT) 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: Atlantic Daylight Time (ADT) 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.
ADT representations, usage and related time zones
- -03 - basic short
- -0300 - basic
- -03:00 - extended
- -0300 - sign character (-) followed by a four digit time providing hours (03) and minutes (00) of the offset. Indicates an offset of three hours to the west of the zero meridian.
- Papa - Military abbreviation for ADT
- P - short form of 'Papa'
- America/Glace_Bay
- America/Goose_Bay
- America/Halifax
- America/Moncton
- America/Thule
- Atlantic/Bermuda
- Canada/Atlantic
- ADT - Atlantic Daylight Time
- PMT - Pierre & Miquelon Standard Time
- PMST - Pierre & Miquelon Standard Time
- AMST - Amazon Summer Time
- ART - Argentina Time
- BRT - Brasília time
- CLST - Chile Summer Time
- FKST - Falkland Islands Summer Time
- GFT - French Guiana Time
- P - Papa Time Zone
- PYST - Paraguay Summer Time
- SRT - Suriname Time
- UYT - Uruguay Time
Central European Time
Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Andorra, Albania, Austria, Bosnia & Herzegovina, Belgium, Switzerland, Czech Republic, Germany, Denmark, Algeria, Spain, France, Gibraltar, Croatia, Hungary, Italy, Liechtenstein, Luxembourg, Monaco, Montenegro, North Macedonia, Malta, Netherlands, Norway, Poland, Serbia, Sweden, Slovenia, Svalbard & Jan Mayen, Slovakia, San Marino, 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
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).
End: Central European Time (CET) ended 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 local daylight time instead. Standard time ends annually on the last Sunday of March.
Start: Central European Time (CET) starts 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. Standard time starts annually on the last Sunday of October.
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