Updating current time…
SAST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
EST
UTC−5
7h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
AEDT
12am
3am
6am
9am
12pm
3pm
6pm
9pm
PST
UTC−8
10h behind
12am
3am
6am
9am
12pm
3pm
6pm
9pm
UTC
12am
3am
6am
9am
12pm
3pm
6pm
9pm
GMT/BST
UTC+0
2h 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

2:00 pm14:00 SAST (UTC+2), Nov 11, 2026 = 7:00 am07:00 EST (UTC-5), Nov 11, 2026 = 11:00 pm23:00 AEDT (UTC+11), Nov 11, 2026 = 4:00 am04:00 PST (UTC-8), Nov 11, 2026 = 12:00 pm12:00 UTC (UTC+0), Nov 11, 2026 = 12:00 pm12:00 GMT (UTC+0), Nov 11, 2026

SAST is 7 hours ahead of EST. SAST is 9 hours behind AEDT. SAST is 10 hours ahead of PST. SAST is 2 hours ahead of UTC. SAST is 2 hours ahead of GMT.

How the time difference changes

SAST to EST

For most of the year, SAST is 6 hours ahead of EDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, SAST is 7 hours ahead of EST.

For most of the year, working hours of 9:00 am to 6:00 pm in SAST 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 SAST correspond to 2:00 am to 11:00 am in EST.For most of the year, working hours of 09:00 to 18:00 in SAST correspond to 03:00 to 12:00 in EDT. At other times of the year, working hours of 09:00 to 18:00 in SAST correspond to 02:00 to 11:00 in EST.

SAST to AEDT

Depending on seasonal clock changes, SAST is 8 hours behind AEST or SAST is 9 hours behind AEDT.

Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in SAST correspond to 5:00 pm to 2:00 am (next day) in AEST or working hours of 9:00 am to 6:00 pm in SAST correspond to 6:00 pm to 3:00 am (next day) in AEDT.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in SAST correspond to 17:00 to 02:00 (next day) in AEST or working hours of 09:00 to 18:00 in SAST correspond to 18:00 to 03:00 (next day) in AEDT.

SAST to PST

For most of the year, SAST is 9 hours ahead of PDT. From Nov 1, 2026 to Mar 14, 2027, and from Nov 7, 2027 to Mar 12, 2028, SAST is 10 hours ahead of PST.

For most of the year, working hours of 9:00 am to 6:00 pm in SAST 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 SAST correspond to 11:00 pm (previous day) to 8:00 am in PST.For most of the year, working hours of 09:00 to 18:00 in SAST correspond to 00:00 to 09:00 in PDT. At other times of the year, working hours of 09:00 to 18:00 in SAST correspond to 23:00 (previous day) to 08:00 in PST.

SAST to UTC

SAST is 2 hours ahead of UTC year-round.

Working hours of 9:00 am to 6:00 pm in SAST correspond to 7:00 am to 4:00 pm in UTC.Working hours of 09:00 to 18:00 in SAST correspond to 07:00 to 16:00 in UTC.

SAST to BST

For most of the year, SAST is 1 hour ahead of BST. From Oct 25, 2026 to Mar 28, 2027, and from Oct 31, 2027 to Mar 26, 2028, SAST is 2 hours ahead of GMT.

For most of the year, working hours of 9:00 am to 6:00 pm in SAST 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 SAST correspond to 7:00 am to 4:00 pm in GMT.For most of the year, working hours of 09:00 to 18:00 in SAST correspond to 08:00 to 17:00 in BST. At other times of the year, working hours of 09:00 to 18:00 in SAST correspond to 07:00 to 16:00 in GMT.

Compare SAST time with EST, AEDT, PST, UTC, and BST time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

South Africa Standard Time is 7 hours ahead of Eastern Standard Time. South Africa Standard Time is 9 hours behind Australian Eastern Daylight Time. South Africa Standard Time is 10 hours ahead of Pacific Standard Time. South Africa Standard Time is 2 hours ahead of Coordinated Universal Time. South Africa Standard Time is 2 hours ahead of Greenwich Mean Time.
2:00 pm14:00 in SAST is 7:00 am07:00 in EST and is 11:00 pm23:00 in AEDT and is 4:00 am04:00 in PST and is 12:00 pm12:00 in UTC and is 12:00 pm12:00 in GMT

SAST to EST call time
Best time for a conference call or a meeting is between 4pm-6pm16:00-18:00 in SAST which corresponds to 9am-11am09:00-11:00 in EST.
SAST to AEDT call time
Best time for a conference call or a meeting is between 8:30am-9:30am08:30-09:30 in SAST which corresponds to 5:30pm-6:30pm17:30-18:30 in AEDT. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
SAST to PST call time
Best time for a conference call or a meeting is between 6pm-7pm18:00-19:00 in SAST which corresponds to 8am-9am08:00-09:00 in PST. Their 9am–6pm09:00–18:00 working hours do not overlap; this is a suggested compromise.
SAST to UTC call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in SAST which corresponds to 9am-4pm09:00-16:00 in UTC.
SAST to GMT call time
Best time for a conference call or a meeting is between 11am-6pm11:00-18:00 in SAST which corresponds to 9am-4pm09:00-16:00 in GMT.

2:00 pm14:00 South Africa Standard Time (SAST). Offset UTC +2:00 hours
7:00 am07:00 Eastern Standard Time (EST). Offset UTC -5:00 hours
11:00 pm23:00 Australian Eastern Daylight Time (AEDT). Offset UTC +11:00 hours
4:00 am04:00 Pacific Standard Time (PST). Offset UTC -8:00 hours
12:00 pm12:00 Coordinated Universal Time (UTC). Offset UTC 0:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

2:00 pm14:00 SAST / 7:00 am07:00 EST / 11:00 pm23:00 AEDT / 4:00 am04:00 PST / 12:00 pm12:00 UTC / 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
SASTESTAEDTPSTUTCGMT
5:00pm previous day9:00am2:00pm previous day10:00pm previous day10:00pm previous day
6:00pm previous day10:00am3:00pm previous day11:00pm previous day11:00pm previous day
7:00pm previous day11:00am4:00pm previous day12:00am12:00am
8:00pm previous day12:00pm5:00pm previous day1:00am1:00am
9:00pm previous day1:00pm6:00pm previous day2:00am2:00am
10:00pm previous day2:00pm7:00pm previous day3:00am3:00am
11:00pm previous day3:00pm8:00pm previous day4:00am4:00am
12:00am4:00pm9:00pm previous day5:00am5:00am
1:00am5:00pm10:00pm previous day6:00am6:00am
2:00am6:00pm11:00pm previous day7:00am7:00am
3:00am7:00pm12:00am8:00am8:00am
4:00am8:00pm1:00am9:00am9:00am
5:00am9:00pm2:00am10:00am10:00am
6:00am10:00pm3:00am11:00am11:00am
7:00am11:00pm4:00am12:00pm12:00pm
8:00am12:00am next day5:00am1:00pm1:00pm
9:00am1:00am next day6:00am2:00pm2:00pm
10:00am2:00am next day7:00am3:00pm3:00pm
11:00am3:00am next day8:00am4:00pm4:00pm
12:00pm4:00am next day9:00am5:00pm5:00pm
1:00pm5:00am next day10:00am6:00pm6:00pm
2:00pm6:00am next day11:00am7:00pm7:00pm
3:00pm7:00am next day12:00pm8:00pm8:00pm
4:00pm8:00am next day1:00pm9:00pm9:00pm
17:00 previous day09:0014:00 previous day22:00 previous day22:00 previous day
18:00 previous day10:0015:00 previous day23:00 previous day23:00 previous day
19:00 previous day11:0016:00 previous day00:0000:00
20:00 previous day12:0017:00 previous day01:0001:00
21:00 previous day13:0018:00 previous day02:0002:00
22:00 previous day14:0019:00 previous day03:0003:00
23:00 previous day15:0020:00 previous day04:0004:00
00:0016:0021:00 previous day05:0005:00
01:0017:0022:00 previous day06:0006:00
02:0018:0023:00 previous day07:0007:00
03:0019:0000:0008:0008:00
04:0020:0001:0009:0009:00
05:0021:0002:0010:0010:00
06:0022:0003:0011:0011:00
07:0023:0004:0012:0012:00
08:0000:00 next day05:0013:0013:00
09:0001:00 next day06:0014:0014:00
10:0002:00 next day07:0015:0015:00
11:0003:00 next day08:0016:0016:00
12:0004:00 next day09:0017:0017:00
13:0005:00 next day10:0018:0018:00
14:0006:00 next day11:0019:0019:00
15:0007:00 next day12:0020:0020:00
16:0008:00 next day13:0021:0021:00

South Africa Standard Time

Offset: SAST is 2 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Eswatini, Lesotho, South Africa

Principal Cities: The largest city in the SAST time zone is Johannesburg in South Africa, with about 9.418 million people. Other major cities in this time zone include Cape Town, Durban, Pretoria, Gqeberha.

Daylight Saving: Clocks in South Africa Standard Time (SAST) do not change for daylight saving time, so SAST stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter; see upcoming clock changes worldwide.

SAST 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 SAST
  • B - short form of 'Bravo'
IANA/Olson: Reflects SAST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Africa/Johannesburg
  • Africa/Maseru
  • Africa/Mbabane
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

Eastern Standard Time

Offset: EST is 5 hours behind Greenwich Mean Time (GMT).

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

Principal Cities: The largest city in the EST 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: HNE - Heure Normale de l'Est

Spanish: ET - Tiempo del Este, ET - Zona Sureste

Map of the areas on Eastern Standard Time (EST)
EST all year EST part of the year

Today all shaded areas are on EST.

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

123456789101112Start: Eastern Standard Time (EST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Eastern Standard Time (EST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

See USA daylight saving time and upcoming clock changes worldwide.

EST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • -05 - basic short
  • -0500 - basic
  • -05:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Romeo - Military abbreviation for EST
  • R - short form of 'Romeo'
IANA/Olson: Reflects EST time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • America/Atikokan
  • America/Cancun
  • America/Cayman
  • America/Coral_Harbour
  • 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/Jamaica
  • America/Kentucky/Louisville
  • America/Kentucky/Monticello
  • America/Louisville
  • America/Montreal
  • America/Nassau
  • America/New_York
  • America/Nipigon
  • America/Panama
  • America/Pangnirtung
  • America/Port-au-Prince
  • America/Thunder_Bay
  • America/Toronto
  • Canada/Eastern
  • EST
  • EST5EDT
  • Jamaica
  • US/East-Indiana
  • US/Eastern
  • US/Michigan
Time zones with the GMT -5 offset:
  • CDT - Central Daylight Time
  • EST - Eastern Standard Time
  • ET - Eastern Time
  • COT - Colombia Time
  • CST - Cuba Standard Time
  • EASST - Easter Island Summer Time
  • ECT - Ecuador Time
  • PET - Peru Time
  • R - Romeo Time Zone

Australian Eastern Daylight Time

Offset: AEDT is 11 hours ahead of Greenwich Mean Time (GMT).

Countries using this time zone: Australia

Principal Cities: The largest city in the AEDT time zone is Sydney in Australia, with about 5.639 million people. Other major cities in this time zone include Melbourne, Newcastle, Canberra, Central Coast.

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

Today all shaded areas are on AEDT.

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

123456789101112Start: Australian Eastern Daylight Time (AEDT) 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 Eastern Daylight Time (AEDT) 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.

Australian Eastern Daylight Time (AEDT) is observer in New South Wales (except Broken Hill and Lord Howe Island), Victoria, Tasmania, Australian Capital Territory, Sydney, Melbourne, Hobart, Canberra AEDT is equal to Coordinated Universal Time plus 11 hours (UTC +11). During a summer time period, these locations move from AEST to Australian Eastern Daylight Time (AEDT), and clocks are advanced to UTC +11.

Daylight saving or summer time is commonly expressed as AEDT (Australian Eastern Daylight Time). In periods of daylight saving an hour is added to the Local Standard Time.

The regulation of time is a State Government responsibility. Changes to the period of daylight saving may be made by regulation. Legislation to harmonise daylight saving in NSW with the south-eastern states and the ACT was passed by the NSW Parliament on 23 October 2007.

History of daylight saving in New South Wales
Daylight saving operated nationally for single summer during World War I from 1 January 1917 to 25 March 1917 and during World War II for three summers in a row, starting on 1 January 1942. Daylight saving was re-introduced for third time in New South Wales on 31 October 1971 after New South Wales Parliament passed the Standard Time Act 1971. A referendum held on 1 May 1976 proposed that daylight saving should be on a permanent basis. The ballot paper stated: "At present there is a period commonly called 'daylight saving' by which time is advanced by one hour for the period commencing on the last Sunday in October in each year and ending on the first Sunday in March in the following year. Electors were then asked to answer YES or NO to the question: Are you in favour of daylight saving? 1,882,770 electors were in favour, 868,900 were against and 35,507 votes were informal.\" The period of daylight saving is prescribed by the Daylight Saving Regulations 2008, made under the Daylight Saving Act 2007. Since April 2008, daylight saving has been synchronised across Tasmania, New South Wales, Victoria, the ACT and South Australia, although South Australia remains half an hour behind throughout the year due to the observance of Australian Central Standard Time.

Which is correct Daylight Savings or Daylight Saving (with or without the 's' at the end)? The correct spelling in Australia is without the 's'.

AEDT representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +11 - basic short
  • +1100 - basic
  • +11:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1100 - sign character (+) followed by a four digit time providing hours (11) and minutes (00) of the offset. Indicates an offset of eleven hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Lima - Military abbreviation for AEDT
  • L - short form of 'Lima'
IANA/Olson: Reflects AEDT time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Antarctica/Macquarie
  • Australia/ACT
  • Australia/Canberra
  • Australia/Currie
  • Australia/Hobart
  • Australia/Melbourne
  • Australia/NSW
  • Australia/Sydney
  • Australia/Tasmania
  • Australia/Victoria
Time zones with the GMT +11 offset:
  • AEDT - Australian Eastern Daylight Time
  • BST - Bougainville Standard Time
  • KOST - Kosrae Time
  • L - Lima Time Zone
  • LHDT - Lord Howe Daylight Time
  • MAGT - Magadan Time
  • NCT - New Caledonia Time
  • NFT - Norfolk Time
  • PONT - Pohnpei Standard Time
  • SBT - Solomon Islands Time
  • VLAST - Vladivostok Summer Time
  • VUT - Vanuatu 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 all shaded areas are on PST.

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).

123456789101112Start: Pacific Standard Time (PST) started on Sunday, November 1, 2026 at 2:00 am02:00 local time and clocks were set one hour back to Sunday, November 1, 2026, 1:00 am01:00. Standard time starts annually on the first Sunday of November.

123456789101112End: Pacific Standard Time (PST) ends on Sunday, March 14, 2027 at 2:00 am02:00 local time and clocks are set one hour forward to Sunday, March 14, 2027, 3:00 am03:00 local daylight time instead. Standard time ends annually on the second Sunday of March.

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

Coordinated Universal Time

Offset: UTC is the same as Greenwich Mean Time (GMT).

Countries using this time zone: Antarctica, Burkina Faso, Faroe Islands, Gambia, Ghana, Greenland, Guernsey, Guinea, Guinea-Bissau, Iceland, Ireland, Isle of Man, Ivory Coast, Jersey, Liberia, Mali, Mauritania, Morocco, Portugal, Saint Helena, São Tomé and Príncipe, Senegal, Sierra Leone, Spain, Togo, United Kingdom, Western Sahara

Principal Cities: The largest city in the UTC time zone is London in the United Kingdom, with about 8.962 million people. Other major cities in this time zone include Abidjan, Bamako, Casablanca, Dakar.

Coordinated Universal Time (UTC) is the world time standard that regulates clocks and time. It is the successor to Greenwich Mean Time (GMT). For casual use, UTC is the same as GMT, but UTC is the standard the scientific community uses.
UTC has been the time standard commonly used across the world since 1972. It is used in many technical fields, such as aviation and meteorology, and to synchronize time across internet networks.

Map of the areas on Coordinated Universal Time (UTC)
UTC all year UTC part of the year

Today some of the lighter areas are on UTC−1.

UTC 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 UTC
  • Z - short form of 'Zulu'
IANA/Olson: Reflects UTC time zone boundaries defined by political bodies, primarily intended for use with computer programs and operating systems
  • Etc/UCT
  • Etc/UTC
  • Etc/Universal
  • Etc/Zulu
  • UCT
  • UTC
  • Universal
  • Zulu
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 - Coordinated Universal Time
  • WT - Western Sahara Standard Time
  • Z - Zulu Time Zone

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