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Hawaii, USA
HST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
GMT/BST
Greenwich Mean Time
GMT +0
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BST is not used on this date
This converter uses GMT (GMT +0), the offset London uses on this date. Open the GMT converter.

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How the time difference changes

For most of the year, Honolulu is 11 hours behind BST. At other times of the year, Honolulu is 10 hours behind GMT.

For most of the year, working hours of 9:00 am to 5:00 pm in Honolulu correspond to 8:00 pm to 4:00 am (next day) in BST. At other times of the year, working hours of 9:00 am to 5:00 pm in Honolulu correspond to 7:00 pm to 3:00 am (next day) in GMT.

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

Time Difference

HST (Hawaii Standard Time) is 10 hours behind Greenwich Mean Time
2:00 am02:00 in Honolulu, HI, USA is 12:00 pm12:00 in GMT

Honolulu to GMT call time
Best time for a conference call or a meeting is between 7:30am-8:30am in Honolulu which corresponds to 5:30pm-6:30pm in GMT

2:00 am02:00 HST (Hawaii Standard Time) (Honolulu, HI, USA). Offset UTC -10:00 hours
12:00 pm12:00 Greenwich Mean Time (GMT). Offset UTC 0:00 hours

2:00 am02:00 Honolulu, HI, USA / 12:00 pm12:00 GMT

Honolulu, HI, USAGMT
12am (midnight)10am
1am11am
2am12pm (noon)
3am1pm
4am2pm
5am3pm
6am4pm
7am5pm
8am6pm
9am7pm
10am8pm
11am9pm
12pm (noon)10pm
1pm11pm
2pm12am (midnight)
3pm1am
4pm2am
5pm3am
6pm4am
7pm5am
8pm6am
9pm7am
10pm8am
11pm9am
00:0010:00
01:0011:00
02:0012:00
03:0013:00
04:0014:00
05:0015:00
06:0016:00
07:0017:00
08:0018:00
09:0019:00
10:0020:00
11:0021:00
12:0022:00
13:0023:00
14:0000:00
15:0001:00
16:0002:00
17:0003:00
18:0004:00
19:0005:00
20:0006:00
21:0007:00
22:0008:00
23:0009:00

Honolulu Information

Time Zone

Abbreviation / Name
HST - Hawaii Standard Time
UTC / GMT Offset
-10:00 hours during Hawaii Standard Time, currently in use.

Honolulu Facts

Country
USA
State
Hawaii
Alternative Names
Anorourou, Chonoloulou, Gana-Rura, Gana-ruru, Ganalulu, Ganaruro, Ganaruru, Gonolulu, HNL, Hana-Rura, Hana-Ruru, Hana-ruru, Honoloulou, Honolulu, Honolulú, Honolúlú, Honoruru, Khonolulu, Than-hiong-san, Thàn-hiông-sân, hanalulu, hanululu, honalulu, honollullu, honolulu, honoruru, hwnwlwlw, tan xiang shan, Χονολουλού, Ганалулу, Гонолулу, Хонолулу, Һонолулу, Հոնոլուլու, האנאלולו, הונולולו, هونولولو, ہwnwlwlw ہwayy, ہونولولو, ہونولولو، ہوائی, हानलूलू, होनालुलु, होनोलुलु, होनोलूलू, হনলুলু, হনুলুলু, ହନଲୁଲୁ, ஹொனலுலு, ಹೊನೊಲುಲು, โฮโนลูลู, ཧོ་ནོ་ལུ་ལུ།, ဟိုနိုလူလူမြို့, ჰონოლულუ, ሆኖሉሉ, ホノルル, 檀香山, 호놀룰루
Population
350,964
Currency
Dollar (USD)
Geographic Coordinates
21° 18' N Latitude / 157° 51' W Longitude
International Dialing Code
+1

British Summer Time

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

Countries using this time zone: Britain (UK), Guernsey, Isle of Man, Jersey

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

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.

BST Time Zone Geo Map
BST timezone map

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