CEST/CET
Central European Summer Time
GMT +2
CET automatically adjusted to CEST time zone, that is in use
W
Whiskey Time Zone
GMT -10

Time Difference

Central European Summer Time is 12 hours ahead of Whiskey Time Zone
9:30 pm21:30 in CEST is 9:30 am09:30 in W

CET to W call time
Best time for a conference call or a meeting is between 6:30pm-8:30pm in CET which corresponds to 7:30am-9:30am in W

9:30 pm21:30 Central European Summer Time (CEST). Offset UTC +2:00 hours
9:30 am09:30 Whiskey Time Zone (W). Offset UTC -10:00 hours

9:30 pm21:30 CEST / 9:30 am09:30 W

CEST W
12am (midnight) 12pm (noon)
1am 1pm
2am 2pm
3am 3pm
4am 4pm
5am 5pm
6am 6pm
7am 7pm
8am 8pm
9am 9pm
10am 10pm
11am 11pm
12pm (noon) 12am (midnight)
1pm 1am
2pm 2am
3pm 3am
4pm 4am
5pm 5am
6pm 6am
7pm 7am
8pm 8am
9pm 9am
10pm 10am
11pm 11am
0:00 12:00
1:00 13:00
2:00 14:00
3:00 15:00
4:00 16:00
5:00 17:00
6:00 18:00
7:00 19:00
8:00 20:00
9:00 21:00
10:00 22:00
11:00 23:00
12:00 0:00
13:00 1:00
14:00 2:00
15:00 3:00
16:00 4:00
17:00 5:00
18:00 6:00
19:00 7:00
20:00 8:00
21:00 9:00
22:00 10:00
23:00 11:00

Central European Time

Offset: CET is 1 hour ahead Greenwich Mean Time (GMT) and is used in Europe

Countries: It is used in following countries: 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 timezone is Berlin from Germany with population about 3.426 million people. Other major cities in the area are Madrid, Rome, Paris, Algiers

German: MEZ - Mitteleuropäische Zeit

CET Time Zone Geo Map
CET timezone map

Daylight Saving: This is a standard time zone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Central European Summer Time (CEST).

Daylight saving time clock moves forward for one hour from 2am to 3amEnd: Central European Time (CET) has ended on Sunday, March 31, 2024 at 2:00 am local time and clocks were set one hour forward to Sunday, March 31, 2024, 3:00 am local daylight time instead. Standard time ends annually the on last Sunday of March.

Daylight saving time clock moves back for one hour from 3am to 2amStart: Central European Time (CET) starts on Sunday, October 27, 2024 at 3:00 am local time and clocks are set one hour back to Sunday, October 27, 2024, 2:00 am. Standard time starts annually the on last Sunday of October.

CET representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +01 - basic short
  • +0100 - basic
  • +01:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0100 - sign character (+) followed by a four digit time providing hours (01) and minutes (00) of the offset. Indicates one hour and zero minutes time differences to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for CET
  • A - short form of 'Alpha'
IANA/Olson: Reflects CET time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
  • Poland
Time zones with the GMT +1 offset:
  • 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

Whiskey Time Zone

Offset: W is 10 hours behind Greenwich Mean Time (GMT) and is used in Military

W representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -10 - basic short
  • -1000 - basic
  • -10:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -1000 - sign character (-) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Whiskey - Military abbreviation for W
  • W - short form of 'Whiskey'
Time zones with the GMT -10 offset:
  • HAST - Hawaii-Aleutian Standard Time
  • CKT - Cook Island Time
  • HST - Hawaii Standard Time
  • TAHT - Tahiti Time
  • W - Whiskey Time Zone