CEST
Central European Summer Time
GMT +2
Mon, Mar 28
12am
3am
6am
9am
12pm
3pm
6pm
9pm
GMT
Greenwich Mean Time
GMT +0
Mon, Mar 28
12am
3am
6am
9am
12pm
3pm
6pm
9pm
HKT
Hong Kong Time
GMT +8
Mon, Mar 28
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare CEST time with GMT and HKT time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

Central European Summer Time is 2 hours ahead of Greenwich Mean Time and 6 hours behind Hong Kong Time
8:00 am08:00 in CEST is 6:00 am06:00 in GMT and is 2:00 pm14:00 in HKT

CEST to GMT call time
Best time for a conference call or a meeting is between 11am-5pm in CEST which corresponds to 9am-3pm in GMT
CEST to HKT call time
Best time for a conference call or a meeting is between 9am-11am in CEST which corresponds to 3pm-5pm in HKT

8:00 am08:00 Central European Summer Time (CEST). Offset UTC +2:00 hours
6:00 am06:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours
2:00 pm14:00 Hong Kong Time (HKT). Offset UTC +8:00 hours

8:00 am08:00 CEST / 6:00 am06:00 GMT / 2:00 pm14:00 HKT

CESTGMTHKT
12am (midnight)10pm6am
1am11pm7am
2am12am (midnight)8am
3am1am9am
4am2am10am
5am3am11am
6am4am12pm (noon)
7am5am1pm
8am6am2pm
9am7am3pm
10am8am4pm
11am9am5pm
12pm (noon)10am6pm
1pm11am7pm
2pm12pm (noon)8pm
3pm1pm9pm
4pm2pm10pm
5pm3pm11pm
6pm4pm12am (midnight)
7pm5pm1am
8pm6pm2am
9pm7pm3am
10pm8pm4am
11pm9pm5am
00:0022:0006:00
01:0023:0007:00
02:0000:0008:00
03:0001:0009:00
04:0002:0010:00
05:0003:0011:00
06:0004:0012:00
07:0005:0013:00
08:0006:0014:00
09:0007:0015:00
10:0008:0016:00
11:0009:0017:00
12:0010:0018:00
13:0011:0019:00
14:0012:0020:00
15:0013:0021:00
16:0014:0022:00
17:0015:0023:00
18:0016:0000:00
19:0017:0001:00
20:0018:0002:00
21:0019:0003:00
22:0020:0004:00
23:0021:0005:00

Central European Summer Time

Offset: CEST is 2 hours 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, 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, 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, Budapest.

German: MESZ - Mitteleuropäische Sommerzeit

CEST Time Zone Geo Map
CEST timezone map

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).

Daylight saving time clock moves forward for one hour from 2am to 3amStart: Central European Summer Time (CEST) started on Sunday, March 27, 2022 at 2:00 am local time and clocks were set one hour forward to Sunday, March 27, 2022, 3:00 am. Daylight saving starts annually on the last Sunday of March

Daylight saving time clock moves back for one hour from 3am to 2amEnd: Central European Summer Time (CEST) ends on Sunday, October 30, 2022 at 3:00 am local time and clocks are set one hour back to Sunday, October 30, 2022, 2:00 am local standard time instead. Daylight saving ends annually on the last Sunday of October

CEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +02 - basic short
  • +0200 - basic
  • +02:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Bravo - Military abbreviation for CEST
  • B - short form of 'Bravo'
IANA/Olson: Reflects CEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
Time zones with the GMT +2 offset:
  • 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

Greenwich Mean Time

Offset: GMT is 0 hours ahead Greenwich Mean Time (GMT) and is used in Europe

Countries using this time zone: Burkina Faso, Côte d'Ivoire, Ghana, Greenland, Gambia, Guinea, Guinea-Bissau, Iceland, Liberia, Mali, Mauritania, St Helena, Sierra Leone, Senegal, Sao Tome & Principe, Togo

Principal Cities: The largest city in the GMT time zone is Abidjan in Ivory Coast, with about 3.677 million people. Other major cities in this time zone include Dakar, Grand Dakar, Accra, Camayenne.

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 for the most parts it is the same. In military GMT is known as Zulu time.Greenwich Mean Time was the same as Universal Time (UT), until the introduction of UTC in 1972 a standard astronomical concept used in many technical fields.

GMT Time Zone Geo Map
GMT timezone map

GMT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • Z - is the zone designator for the zero UTC/GMT offset, also known as 'Zulu' time
  • +00 - basic short
  • +0000 - basic
  • +00:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0000 - sign character (+) followed by a four digit time providing hours (00) and minutes (00) of the offset. Indicates the zero UTC/GMT offset.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Zulu - Military abbreviation for GMT
  • Z - short form of 'Zulu'
IANA/Olson: Reflects GMT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • 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
Time zones with the GMT +0 offset:
  • EGST - Eastern Greenland Summer Time
  • GMT - Greenwich Mean Time
  • WET - Western European Time
  • AZOST - Azores Summer Time
  • UTC - Universal Time Coordinated
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

Hong Kong Time

Offset: HKT is 8 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Hong Kong

Principal Cities: The largest city in the HKT time zone is Hong Kong in Hong Kong, with about 7.013 million people. Other major cities in this time zone include Kowloon, Tsuen Wan, Yuen Long Kau Hui, Sha Tin.

Daylight Saving: Clocks in Hong Kong Time (HKT) do not change for daylight saving time, so HKT stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.

HKT Time Zone Geo Map
HKT timezone map

HKT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +08 - basic short
  • +0800 - basic
  • +08:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +0800 - sign character (+) followed by a four digit time providing hours (08) and minutes (00) of the offset. Indicates an offset of eight hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Hotel - Military abbreviation for HKT
  • H - short form of 'Hotel'
IANA/Olson: Reflects HKT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Asia/Hong_Kong
  • Hongkong
Time zones with the GMT +8 offset:
  • ACT - ASEAN Common Time
  • AWST - Australian Western Standard Time
  • BNT - Brunei Darussalam Time
  • CAST - Casey Time
  • CHOT - Choibalsan Time
  • CST - China Standard Time
  • H - Hotel Time Zone
  • HKT - Hong Kong Time
  • HOVST - Hovd Summer Time
  • IRKT - Irkutsk Time
  • KRAST - Krasnoyarsk Summer Time
  • MYT - Malaysia Time
  • PHT - Philippine Time
  • SGT - Singapore Time
  • ULAT - Ulaanbaatar Time
  • WITA - Central Indonesian Time