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ANAST
Anadyr Summer Time
GMT +12
12am
3am
6am
9am
12pm
3pm
6pm
9pm
BST
Bougainville Standard Time
GMT +11
yesterday
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Quick answers

Selected conversion

12:00 am00:00 ANAST (UTC+12), Oct 12, 2026 = 11:00 pm23:00 BST (UTC+11), Oct 11, 2026

ANAST is 1 hour ahead of BST.

ANAST and BST examples

These examples always use ANAST (UTC+12) and BST (UTC+11). They stay the same when you change the date or time above. The selected conversion may differ when daylight saving time applies.

ANAST is 1 hour ahead of BST.

How the time difference changes

ANAST is 1 hour ahead of BST Pacific year-round.

Working hours of 9:00 am to 5:00 pm in ANAST correspond to 8:00 am to 4:00 pm in BST Pacific.Working hours of 09:00 to 17:00 in ANAST correspond to 08:00 to 16:00 in BST Pacific.

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

Time Difference

Anadyr Summer Time is 1 hour ahead of Bougainville Standard Time.
12:00 am00:00 in ANAST is 11:00 pm23:00 in BST

ANAST to BST call time
Best time for a conference call or a meeting is between 10am-5pm10:00-17:00 in ANAST which corresponds to 9am-4pm09:00-16:00 in BST

12:00 am00:00 Anadyr Summer Time (ANAST). Offset UTC +12:00 hours
11:00 pm23:00 Bougainville Standard Time (BST). Offset UTC +11:00 hours

12:00 am00:00 ANAST / 11:00 pm23:00 BST

ANASTBST
12:00am11:00pm
1:00am12:00am
2:00am1:00am
3:00am2:00am
4:00am3:00am
5:00am4:00am
6:00am5:00am
7:00am6:00am
8:00am7:00am
9:00am8:00am
10:00am9:00am
11:00am10:00am
12:00pm11:00am
1:00pm12:00pm
2:00pm1:00pm
3:00pm2:00pm
4:00pm3:00pm
5:00pm4:00pm
6:00pm5:00pm
7:00pm6:00pm
8:00pm7:00pm
9:00pm8:00pm
10:00pm9:00pm
11:00pm10:00pm
00:0023:00
01:0000:00
02:0001:00
03:0002:00
04:0003:00
05:0004:00
06:0005:00
07:0006:00
08:0007:00
09:0008:00
10:0009:00
11:0010:00
12:0011:00
13:0012:00
14:0013:00
15:0014:00
16:0015:00
17:0016:00
18:0017:00
19:0018:00
20:0019:00
21:0020:00
22:0021:00
23:0022:00

Anadyr Summer Time

Offset: ANAST is 12 hours ahead Greenwich Mean Time (GMT) and is used in Asia

Countries using this time zone: Russia

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

ANAST representations, usage and related time zones

W3C/ISO-8601: International standard covering representation and exchange of dates and time-related data
  • +12 - basic short
  • +1200 - basic
  • +12:00 - extended
Email/RFC-2822: Internet Message Format Date Standard, typically used for timestamps in email headers
  • +1200 - sign character (+) followed by a four digit time providing hours (12) and minutes (00) of the offset. Indicates an offset of twelve hours to the east of the zero meridian.
Military/NATO: Used by the U.S. military, Chinese military and others
  • Mike - Military abbreviation for ANAST
  • M - short form of 'Mike'
Time zones with the GMT +12 offset:
  • ANAST - Anadyr Summer Time
  • ANAT - Anadyr Time
  • FJT - Fiji Time
  • GILT - Gilbert Island Time
  • M - Mike Time Zone
  • MAGST - Magadan Summer Time
  • MHT - Marshall Islands Time
  • NRT - Nauru Time
  • NZST - New Zealand Standard Time
  • PETST - Kamchatka Summer Time
  • TVT - Tuvalu Time
  • WFT - Wallis and Futuna Time

Bougainville Standard Time

Offset: BST is 11 hours ahead Greenwich Mean Time (GMT) and is used in Pacific

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

BST 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 BST
  • L - short form of 'Lima'
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 +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
  • PETT - Kamchatka Time
  • PONT - Pohnpei Standard Time
  • SBT - Solomon IslandsTime
  • VLAST - Vladivostok Summer Time
  • VUT - Vanuatu Time