Updating current time…
CET
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EET/EEST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Eastern Europe is on standard time: EET (UTC+2) until Sun, Mar 28, 2027.
EDT
UTC−4
5h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PDT/PST
UTC−7
8h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Pacific Time is on daylight saving time: PDT (UTC−7) until Sun, Nov 1.
ACDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
GMT/BST
UTC+0
1h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
The United Kingdom is on standard time: GMT (UTC+0) until Sun, Mar 28, 2027.

Quick answers

Selected conversion

1:00 pm13:00 CET (UTC+1), Oct 30, 2026 = 2:00 pm14:00 EET (UTC+2), Oct 30, 2026 = 8:00 am08:00 EDT (UTC-4), Oct 30, 2026 = 5:00 am05:00 PDT (UTC-7), Oct 30, 2026 = 10:30 pm22:30 ACDT (UTC+10:30), Oct 30, 2026 = 12:00 pm12:00 GMT (UTC+0), Oct 30, 2026

CET is 1 hour behind EET. CET is 5 hours ahead of EDT. CET is 8 hours ahead of PDT. CET is 9 hours and 30 minutes behind ACDT. CET is 1 hour ahead of GMT.

How the time difference changes

CET to EEST

For most of the year, CEST is 1 hour behind EEST. From Oct 25, 2026 to Mar 28, 2027, CET is 1 hour behind EET.

For most of the year, working hours of 9:00 am to 6:00 pm in CEST correspond to 10:00 am to 7:00 pm in EEST. At other times of the year, working hours of 9:00 am to 6:00 pm in CET correspond to 10:00 am to 7:00 pm in EET.For most of the year, working hours of 09:00 to 18:00 in CEST correspond to 10:00 to 19:00 in EEST. At other times of the year, working hours of 09:00 to 18:00 in CET correspond to 10:00 to 19:00 in EET.

CET to EDT

For most of the year, CEST is 6 hours ahead of EDT. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, CET is 5 hours ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, CET is 6 hours ahead of EST.

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 EDT. 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 EST or working hours of 9:00 am to 6:00 pm in CET correspond to 4:00 am to 1:00 pm in EDT.For most of the year, working hours of 09:00 to 18:00 in CEST correspond to 03:00 to 12:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in CET correspond to 03:00 to 12:00 in EST or working hours of 09:00 to 18:00 in CET correspond to 04:00 to 13:00 in EDT.

CET to PST

For most of the year, CEST is 9 hours ahead of PDT. From Oct 25 to Nov 1, 2026, and from Mar 14 to Mar 28, 2027, CET is 8 hours ahead of PDT. From Nov 1, 2026 to Mar 14, 2027, CET is 9 hours ahead of PST.

For most of the year, working hours of 9:00 am to 6:00 pm in CEST correspond to 12:00 am to 9:00 am in PDT. At other times of the year, working hours of 9:00 am to 6:00 pm in CET correspond to 12:00 am to 9:00 am in PST or working hours of 9:00 am to 6:00 pm in CET correspond to 1:00 am to 10:00 am in PDT.For most of the year, working hours of 09:00 to 18:00 in CEST correspond to 00:00 to 09:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in CET correspond to 00:00 to 09:00 in PST or working hours of 09:00 to 18:00 in CET correspond to 01:00 to 10:00 in PDT.

CET to ACDT

Depending on seasonal clock changes, CEST is 7 hours and 30 minutes behind ACST, CEST is 8 hours and 30 minutes behind ACDT, or CET is 9 hours and 30 minutes behind ACDT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in CEST correspond to 4:30 pm to 1:30 am (next day) in ACST, working hours of 9:00 am to 6:00 pm in CEST correspond to 5:30 pm to 2:30 am (next day) in ACDT, or working hours of 9:00 am to 6:00 pm in CET correspond to 6:30 pm to 3:30 am (next day) in ACDT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in CEST correspond to 16:30 to 01:30 (next day) in ACST, working hours of 09:00 to 18:00 in CEST correspond to 17:30 to 02:30 (next day) in ACDT, or working hours of 09:00 to 18:00 in CET correspond to 18:30 to 03:30 (next day) in ACDT.

CET to BST

For most of the year, CEST is 1 hour ahead of BST. From Oct 25, 2026 to Mar 28, 2027, CET is 1 hour ahead of GMT.

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 BST. 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 GMT.For most of the year, working hours of 09:00 to 18:00 in CEST correspond to 08:00 to 17:00 in BST. At other times of the year, working hours of 09:00 to 18:00 in CET correspond to 08:00 to 17:00 in GMT.

Compare CET time with EEST, EDT, PST, ACDT, and BST 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 behind Eastern European Time. Central European Time is 5 hours ahead of Eastern Daylight Time. Central European Time is 8 hours ahead of Pacific Daylight Time. Central European Time is 9 hours and 30 minutes behind Australian Central Daylight Time. Central European Time is 1 hour ahead of Greenwich Mean Time.
1:00 pm13:00 in CET is 2:00 pm14:00 in EET and is 8:00 am08:00 in EDT and is 5:00 am05:00 in PDT and is 10:30 pm22:30 in ACDT and is 12:00 pm12:00 in GMT

CET to EET call time
Best time for a conference call or a meeting is between 9am-5pm09:00-17:00 in CET which corresponds to 10am-6pm10:00-18:00 in EET
CET to EDT call time
Best time for a conference call or a meeting is between 2pm-6pm14:00-18:00 in CET which corresponds to 9am-1pm09:00-13:00 in EDT
CET to PDT call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in CET which corresponds to 9am-10am09:00-10:00 in PDT
CET to ACDT call time
Best time for a conference call or a meeting is between 8:30am-9:30am08:30-09:30 in CET which corresponds to 6pm-7pm18:00-19:00 in ACDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
CET to GMT 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 GMT

1:00 pm13:00 Central European Time (CET). Offset UTC +1:00 hour
2:00 pm14:00 Eastern European Time (EET). Offset UTC +2:00 hours
8:00 am08:00 Eastern Daylight Time (EDT). Offset UTC -4:00 hours
5:00 am05:00 Pacific Daylight Time (PDT). Offset UTC -7:00 hours
10:30 pm22:30 Australian Central Daylight Time (ACDT). Offset UTC +10:30 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

1:00 pm13:00 CET / 2:00 pm14:00 EET / 8:00 am08:00 EDT / 5:00 am05:00 PDT / 10:30 pm22:30 ACDT / 12:00 pm12:00 GMT

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.

Hourly time comparison
CETEETEDTPDTACDTGMT
1:00am7:00pm previous day4:00pm previous day9:30am11:00pm previous day
2:00am8:00pm previous day5:00pm previous day10:30am12:00am
3:00am9:00pm previous day6:00pm previous day11:30am1:00am
4:00am10:00pm previous day7:00pm previous day12:30pm2:00am
5:00am11:00pm previous day8:00pm previous day1:30pm3:00am
6:00am12:00am9:00pm previous day2:30pm4:00am
7:00am1:00am10:00pm previous day3:30pm5:00am
8:00am2:00am11:00pm previous day4:30pm6:00am
9:00am3:00am12:00am5:30pm7:00am
10:00am4:00am1:00am6:30pm8:00am
11:00am5:00am2:00am7:30pm9:00am
12:00pm6:00am3:00am8:30pm10:00am
1:00pm7:00am4:00am9:30pm11:00am
2:00pm8:00am5:00am10:30pm12:00pm
3:00pm9:00am6:00am11:30pm1:00pm
4:00pm10:00am7:00am12:30am next day2:00pm
5:00pm11:00am8:00am1:30am next day3:00pm
6:00pm12:00pm9:00am2:30am next day4:00pm
7:00pm1:00pm10:00am3:30am next day5:00pm
8:00pm2:00pm11:00am4:30am next day6:00pm
9:00pm3:00pm12:00pm5:30am next day7:00pm
10:00pm4:00pm1:00pm6:30am next day8:00pm
11:00pm5:00pm2:00pm7:30am next day9:00pm
12:00am next day6:00pm3:00pm8:30am next day10:00pm
01:0019:00 previous day16:00 previous day09:3023:00 previous day
02:0020:00 previous day17:00 previous day10:3000:00
03:0021:00 previous day18:00 previous day11:3001:00
04:0022:00 previous day19:00 previous day12:3002:00
05:0023:00 previous day20:00 previous day13:3003:00
06:0000:0021:00 previous day14:3004:00
07:0001:0022:00 previous day15:3005:00
08:0002:0023:00 previous day16:3006:00
09:0003:0000:0017:3007:00
10:0004:0001:0018:3008:00
11:0005:0002:0019:3009:00
12:0006:0003:0020:3010:00
13:0007:0004:0021:3011:00
14:0008:0005:0022:3012:00
15:0009:0006:0023:3013:00
16:0010:0007:0000:30 next day14:00
17:0011:0008:0001:30 next day15:00
18:0012:0009:0002:30 next day16:00
19:0013:0010:0003:30 next day17:00
20:0014:0011:0004:30 next day18:00
21:0015:0012:0005:30 next day19:00
22:0016:0013:0006:30 next day20:00
23:0017:0014:0007:30 next day21:00
00:00 next day18:0015:0008:30 next day22:00

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

Map of the areas on Central European Time (CET)
CET all year CET part of the year

Today 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).

123456789101112Start: Central European Time (CET) started on Sunday, October 25, 2026 at 3:00 am03:00 local time and clocks were set one hour back to Sunday, October 25, 2026, 2:00 am02:00. Standard time starts annually on the last Sunday of October.

123456789101112End: Central European Time (CET) ends on Sunday, March 28, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 28, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the last Sunday of March.

See upcoming clock changes worldwide.

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 an offset of one hour 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
  • MET
  • 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

Eastern European Summer Time

Offset: EEST is 3 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Åland Islands, Bulgaria, Cyprus, Egypt, Estonia, Finland, Greece, Latvia, Lebanon, Lithuania, Moldova, Palestinian Territory, Romania, Ukraine

Principal Cities: The largest city in the EEST time zone is Cairo in Egypt, with about 9.607 million people. Other major cities in this time zone include Alexandria, Giza, Kyiv, Beirut.

German: OESZ - Osteuropäische Sommerzeit

Map of the areas on Eastern European Summer Time (EEST)
EEST part of the year

Today the shaded areas are on UTC+2 (EET).

Daylight Saving: Eastern European Summer Time (EEST) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Eastern European Time (EET).

123456789101112End: Eastern European Summer Time (EEST) ended on Sunday, October 25, 2026 at 4:00 am04:00 local time and clocks were set one hour back to Sunday, October 25, 2026, 3:00 am03:00 local standard time instead. Daylight saving ends annually on the last Sunday of October.

123456789101112Start: Eastern European Summer Time (EEST) starts on Sunday, March 28, 2027 at 3:00 am03:00 local time and clocks are set one hour forward to Sunday, March 28, 2027, 4:00 am04:00. Daylight saving starts annually on the last Sunday of March.

See upcoming clock changes worldwide.

EEST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +03 - basic short
  • +0300 - basic
  • +03:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +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 east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Charlie - Military abbreviation for EEST
  • C - short form of 'Charlie'
IANA/Olson: Reflects EEST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Cairo
  • Asia/Beirut
  • Asia/Famagusta
  • Asia/Gaza
  • Asia/Hebron
  • Asia/Nicosia
  • EET
  • Egypt
  • Europe/Athens
  • Europe/Bucharest
  • Europe/Chisinau
  • Europe/Helsinki
  • Europe/Kiev
  • Europe/Kyiv
  • Europe/Mariehamn
  • Europe/Nicosia
  • Europe/Riga
  • Europe/Sofia
  • Europe/Tallinn
  • Europe/Tiraspol
  • Europe/Uzhgorod
  • Europe/Vilnius
  • Europe/Zaporozhye
Time zones with the GMT +3 offset:
  • EEST - Eastern European Summer Time
  • MSK - Moscow Standard Time
  • AST - Arabia Standard Time
  • C - Charlie Time Zone
  • EAT - Eastern Africa Time
  • FET - Further Eastern European Time
  • IDT - Israel Daylight Time
  • TRT - Turkey Time

Eastern Daylight Time

Offset: EDT is 4 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Bahamas, Canada, Haiti, Turks and Caicos Islands, United States

Principal Cities: The largest city in the EDT 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: HAE - Heure Avancée de l'Est

Spanish: EDT - Tiempo de verano del Este, ET - Zona Sureste

Map of the areas on Eastern Daylight Time (EDT)
EDT part of the year

Today all shaded areas are on EDT.

Daylight Saving: Eastern Daylight Time (EDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Eastern Standard Time (EST).

123456789101112Start: Eastern Daylight Time (EDT) 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.

123456789101112End: Eastern Daylight Time (EDT) 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.

See USA daylight saving time and upcoming clock changes worldwide.

EDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -04 - basic short
  • -0400 - basic
  • -04:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0400 - sign character (-) followed by a four digit time providing hours (04) and minutes (00) of the offset. Indicates an offset of four hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Quebec - Military abbreviation for EDT
  • Q - short form of 'Quebec'
IANA/Olson: Reflects EDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Detroit
  • America/Fort_Wayne
  • America/Grand_Turk
  • America/Indiana/Indianapolis
  • America/Indiana/Marengo
  • America/Indiana/Petersburg
  • America/Indiana/Vevay
  • America/Indiana/Vincennes
  • America/Indiana/Winamac
  • America/Indianapolis
  • America/Iqaluit
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST5EDT
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -4 offset:
  • AST - Atlantic Standard Time
  • EDT - Eastern Daylight Time
  • AMT - Amazon Time
  • BOT - Bolivia Time
  • CDT - Cuba Daylight Time
  • CLT - Chile Standard Time
  • GYT - Guyana Time
  • HLV - Hora Legal de Venezuela
  • Q - Quebec Time Zone
  • VET - Venezuelan Standard Time

Pacific Standard Time

Offset: PST is 8 hours behind Greenwich Mean Time (GMT).

Countries using this time zone: Mexico, United States

Principal Cities: The largest city in the PST time zone is Los Angeles in the United States, with about 3.821 million people. Other major cities in this time zone include Tijuana, San Diego, Mexicali, San Jose.

French: HNP - Heure Normale du Pacifique

Spanish: PT - Tiempo del Pacífico, PT - Zona Noroeste

Map of the areas on Pacific Standard Time (PST)
PST part of the year

Today the shaded areas are on UTC−7 (PDT).

Daylight Saving: This is a standard time zone. During summer, some places set clocks forward one hour for daylight saving time and observe Pacific Daylight Time (PDT).

123456789101112End: Pacific Standard Time (PST) ended 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 local daylight time instead. Standard time ends annually on the second Sunday of March.

123456789101112Start: Pacific Standard Time (PST) starts 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. Standard time starts annually on the first Sunday of November.

See USA daylight saving time and upcoming clock changes worldwide.

PST 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 west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Uniform - Military abbreviation for PST
  • U - short form of 'Uniform'
IANA/Olson: Reflects PST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Ensenada
  • America/Los_Angeles
  • America/Santa_Isabel
  • America/Tijuana
  • America/Vancouver
  • Canada/Pacific
  • Mexico/BajaNorte
  • PST8PDT
  • US/Pacific
PST Abbreviation: Several time zones share PST abbreviation and it could refer to these time zones
  • Pacific Standard Time - UTC -8
  • Pitcairn Standard Time - UTC -8
Time zones with the GMT -8 offset:
  • AKDT - Alaska Daylight Time
  • PST - Pacific Standard Time
  • PT - Pacific Time
  • PST - Pitcairn Standard Time
  • U - Uniform Time Zone

Australian Central Daylight Time

Offset: ACDT is 10 hours and 30 minutes ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the ACDT time zone is Adelaide in Australia, with about 1.469 million people. Other major cities in this time zone include Mount Gambier, Mount Barker, Whyalla, Gawler.

Map of the areas on Australian Central Daylight Time (ACDT)
ACDT part of the year

Today all shaded areas are on ACDT.

Daylight Saving: Australian Central Daylight Time (ACDT) is a daylight saving/summer time zone. During winter, some places set clocks back one hour and observe Australian Central Standard Time (ACST).

123456789101112Start: Australian Central Daylight Time (ACDT) started on Sunday, October 4, 2026 at 2:00 am02:00 local time and clocks were set one hour forward to Sunday, October 4, 2026, 3:00 am03:00. Daylight saving starts annually on the first Sunday of October.

123456789101112End: Australian Central Daylight Time (ACDT) ends on Sunday, April 4, 2027 at 3:00 am03:00 local time and clocks are set one hour back to Sunday, April 4, 2027, 2:00 am02:00 local standard time instead. Daylight saving ends annually on the first Sunday of April.

See Australia daylight saving time and upcoming clock changes worldwide.

ACDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +1030 - basic
  • +10:30 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1030 - sign character (+) followed by a four digit time providing hours (10) and minutes (30) of the offset. Indicates an offset of ten hours and thirty minutes to the east of the zero meridian.
IANA/Olson: Reflects ACDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Australia/Adelaide
  • Australia/Broken_Hill
  • Australia/South
  • Australia/Yancowinna
Time zones with the GMT +10:30 offset:
  • ACDT - Australian Central Daylight Time
  • LHST - Lord Howe Standard Time

British Summer Time

Offset: BST is 1 hour ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Guernsey, Isle of Man, Jersey, United Kingdom

Principal Cities: The largest city in the BST time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Birmingham, Glasgow, Manchester, Sheffield.

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

Current time in the United Kingdom: UK time now

Map of the areas on British Summer Time (BST)
BST part of the year

Today the shaded areas are on UTC+0 (GMT).

BST 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 an offset of one hour to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Alpha - Military abbreviation for BST
  • A - short form of 'Alpha'
IANA/Olson: Reflects BST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Europe/Belfast
  • Europe/Guernsey
  • Europe/Isle_of_Man
  • Europe/Jersey
  • Europe/London
  • GB
  • GB-Eire
BST Abbreviation: Several time zones share BST abbreviation and it could refer to these time zones
  • British Summer Time - UTC +1
  • Bangladesh Standard Time - UTC +6
  • Bougainville Standard Time - UTC +11
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