CHADT to CET Converter
CHADT is not used on September 20, 2026
This converter uses CHAST for Chatham Island.
CET is not used on this date
This converter uses CEST (GMT +2), the offset Berlin uses on this date. Open the CEST converter.Quick answers
Selected conversion
The selected date and time will appear here when the converter loads.
CHADT and CET examples
These examples always use CHADT (UTC+13:45) 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.
CHADT is 12 hours and 45 minutes ahead of CET.
How the time difference changes
Depending on seasonal clock changes, CHAST is 10 hours and 45 minutes ahead of CEST, CHADT is 11 hours and 45 minutes ahead of CEST, or CHADT is 12 hours and 45 minutes ahead of CET.
Depending on seasonal clock changes, working hours of 9:00 am to 5:00 pm in CHAST correspond to 10:15 pm (previous day) to 6:15 am in CEST, working hours of 9:00 am to 5:00 pm in CHADT correspond to 9:15 pm (previous day) to 5:15 am in CEST, or working hours of 9:00 am to 5:00 pm in CHADT correspond to 8:15 pm (previous day) to 4:15 am in CET.
Compare CHADT time with CET time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Chatham Island Standard Time is 10 hours and 45 minutes ahead of Central European Summer Time
9:30 am09:30 in CHAST is 10:45 pm22:45 in CEST
CHAST to CEST call time
Best time for a conference call or a meeting is between 5:45pm-6:45pm in CHAST which corresponds to 7am-8am in CEST
9:30 am09:30 Chatham Island Standard Time (CHAST). Offset UTC +12:45 hours
10:45 pm22:45 Central European Summer Time (CEST). Offset UTC +2:00 hours
9:30 am09:30 CHAST / 10:45 pm22:45 CEST
| CHAST | CEST |
|---|---|
| 12am (midnight) | 1:15 pm |
| 1am | 2:15 pm |
| 2am | 3:15 pm |
| 3am | 4:15 pm |
| 4am | 5:15 pm |
| 5am | 6:15 pm |
| 6am | 7:15 pm |
| 7am | 8:15 pm |
| 8am | 9:15 pm |
| 9am | 10:15 pm |
| 10am | 11:15 pm |
| 11am | 12:15 am |
| 12pm (noon) | 1:15 am |
| 1pm | 2:15 am |
| 2pm | 3:15 am |
| 3pm | 4:15 am |
| 4pm | 5:15 am |
| 5pm | 6:15 am |
| 6pm | 7:15 am |
| 7pm | 8:15 am |
| 8pm | 9:15 am |
| 9pm | 10:15 am |
| 10pm | 11:15 am |
| 11pm | 12:15 pm |
| 00:00 | 13:15 |
| 01:00 | 14:15 |
| 02:00 | 15:15 |
| 03:00 | 16:15 |
| 04:00 | 17:15 |
| 05:00 | 18:15 |
| 06:00 | 19:15 |
| 07:00 | 20:15 |
| 08:00 | 21:15 |
| 09:00 | 22:15 |
| 10:00 | 23:15 |
| 11:00 | 00:15 |
| 12:00 | 01:15 |
| 13:00 | 02:15 |
| 14:00 | 03:15 |
| 15:00 | 04:15 |
| 16:00 | 05:15 |
| 17:00 | 06:15 |
| 18:00 | 07:15 |
| 19:00 | 08:15 |
| 20:00 | 09:15 |
| 21:00 | 10:15 |
| 22:00 | 11:15 |
| 23:00 | 12:15 |
Chatham Island Daylight Time
Offset: CHADT is 13 hours and 45 minutes ahead Greenwich Mean Time (GMT) and is used in Pacific

Daylight Saving: Chatham Island Daylight Time (CHADT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Chatham Island Standard Time (CHAST).
End: Chatham Island Daylight Time (CHADT) ended on Sunday, April 5, 2026 at 3:45 am local time and clocks were set one hour back to Sunday, April 5, 2026, 2:45 am local standard time instead. Daylight saving ends annually on the first Sunday of April
Start: Chatham Island Daylight Time (CHADT) starts on Sunday, September 27, 2026 at 2:45 am local time and clocks are set one hour forward to Sunday, September 27, 2026, 3:45 am. Daylight saving starts annually on the last Sunday of September
CHADT representations, usage and related time zones
- +1345 - basic
- +13:45 - extended
- +1345 - sign character (+) followed by a four digit time providing hours (13) and minutes (45) of the offset. Indicates an offset of thirteen hours and forty-five minutes to the east of the zero meridian.
Central European Time
Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe
Countries using this time zone: Algeria, Tunisia
Principal Cities: The largest city in the CET time zone is Algiers in Algeria, with about 2.364 million people. Other major cities in this time zone include Oran, Tunis, Constantine, Sfax.
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 am local time and clocks were set one hour forward to Sunday, March 29, 2026, 3:00 am 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 am local time and clocks are set one hour back to Sunday, October 25, 2026, 2:00 am. 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
