What does BST stand for?

BST is used here for Bangladesh Time, Greenwich Mean Time, and Bougainville Time. Because the label is ambiguous, the meaning depends on the city or IANA zone behind it.

What UTC offset is BST?

BST currently spans UTC+00:00 to UTC+11:00 across the zones in this dataset, so you need a city or IANA zone to know the exact offset.

Which cities and countries use BST?

Major cities include Dhaka, London, Abidjan, Bamako, and Chattogram, and the strongest country-level usage in this dataset is Bangladesh, United Kingdom, and Ivory Coast.

Yes. BST maps to 3 meanings in the current catalog, so the short label should be paired with a location whenever accuracy matters.

Should I use BST or an IANA timezone name?

Use BST for quick reading, but use an IANA zone such as Asia/Dhaka or a literal UTC offset when you need something unambiguous in software, contracts, or travel plans.

Timezone abbreviation

BST Time Zone | Meaning, UTC Offset.

BST+06:003 meanings24 countries

BST currently resolves here through Asia/Dhaka, where the live offset is +06:00 (GMT+6). This page expands that into the broader meaning set, top cities, countries, similar labels, and safer exact-zone equivalents.

Representative zones, offset ranges, and city usage are refreshed from the current timezone dataset so abbreviation pages stay tied to real zones instead of static boilerplate.

Ambiguous Abbreviation

"BST" has 3 different meanings depending on the region.

Common meanings of BST

BST maps to 3 distinct meanings spanning UTC+00:00 to UTC+11:00. Pick the one that matches your city or schedule before relying on the short code.

Bangladesh Time

Live reference: Asia/Dhaka (GMT+6, +06:00)

Representative city: Dhaka, Bangladesh

Country anchors: Bangladesh

Open exact zone Open city example

Greenwich Mean Time

Live reference: Europe/London (GMT+0, +00:00)

Representative city: London, United Kingdom

Country anchors: United Kingdom, Ivory Coast, Mali

Open exact zone Open city example

Bougainville Time

Live reference: Pacific/Bougainville (GMT+11, +11:00)

Representative city: Arawa, Papua New Guinea

Country anchors: Papua New Guinea

Open exact zone Open city example

What BST means in practice

BST is reused across 3 different meanings in this dataset — Bangladesh Time, Greenwich Mean Time, and Bougainville Time — which is why the short code alone is not enough to identify a place. Each meaning maps to its own IANA zone family and its own DST behavior, and they happen to share the same letters by historical accident more than by design.

The busiest cities using BST in the current catalog are Dhaka, London, Abidjan, Bamako, and Chattogram. The lead live reference on this page is Dhaka (Asia/Dhaka), currently at +06:00 (GMT+6). Those cities are what give BST its actual feel rather than the abstract offset.

Because BST spans UTC+00:00 to UTC+11:00 across the active meanings, software, calendars, and contracts should always pin a specific IANA zone such as Asia/Dhaka or a literal UTC offset. The short label is fine for headlines and chat; it is the wrong primitive for storing or scheduling timestamps.

Live reference

Bangladesh Time

Asia/Dhaka

--:--:--

Current offset

+06:00 (GMT+6)

Meanings / zones / countries

3 / 24 / 24

Offset range

UTC+00:00 to UTC+11:00

How BST shows up in real schedules

BST is well ahead of UTC, which usually means it is read inside Asia, the Middle East, or the Indian Ocean rim. In practice it is read inside South Asia, where the leading city anchors are Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast.

BST is one of the genuinely ambiguous timezone shorthands: it carries 3 distinct meanings across 24 IANA zones and 24 country groupings, so context is the only thing that resolves it.

BST appears in calendar invites where the sender forgot to attach a city, which is exactly when it goes wrong. BST stays on a single offset year-round in the current data, which simplifies its operational use.

BST reference details

Zone family, representative city, current offset, country coverage, and nearby abbreviation context for BST.

Primary zone

Asia/Dhaka

Live offset

+06:00 · GMT+6

Region family

South Asia

Meaning count

3 meanings

Zone / country reach

24 zones · 24 countries

Representative city

Dhaka, Bangladesh

Country anchor

Bangladesh

DST posture

No upcoming seasonal clock change detected in the representative zone

Offset range

UTC+00:00 to UTC+11:00

Data fingerprint

What makes BST non-interchangeable

This compact fingerprint is intentionally specific: exact zone IDs, place anchors, country anchors, transition cues, and offset peers. It gives humans and crawlers concrete reasons not to collapse BSTinto another abbreviation with the same clock hour.

Route identity

bst · BST · Bangladesh Time · Asia/Dhaka

Exact IANA zone set

Asia/Dhaka, Africa/Abidjan, and Africa/Bamako

Place anchors

Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast

Country anchors

Bangladesh (Asia/Dhaka), United Kingdom (Europe/London), and Ivory Coast (Africa/Abidjan)

Transition fingerprints

Asia/Dhaka: no next-year switch, Africa/Abidjan: no next-year switch, and Africa/Bamako: no next-year switch

Offset peers to verify

BTT (Asia/Thimphu), IOT (Indian/Chagos), KGT (Asia/Bishkek), OMST (Asia/Omsk)

Abbreviation dossier

What makes this BST page specific

These checks separate the abbreviation from lookalike labels and same-offset codes: the representative IANA zone, the current civil-time reading, the city/country footprint, and whether the lead zone has an upcoming clock change.

Primary live reading

Bangladesh Time resolves through Asia/Dhaka right now: +06:00 (GMT+6).

Ambiguity status

BST has 3 meanings, so the city/country context matters before you store the abbreviation in a calendar invite or database.

DST and transition posture

Asia/Dhaka has no scheduled offset switch in the next year in this snapshot.

Country and city reach

BST is represented across 24 countries, 24 IANA zones, and lead cities including Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast.

Same-offset caution

BST and BTT currently share +06:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.

Editorial check

BST ambiguity reading: Use Europe/London when the source means British Summer Time.

Precision layer

BST risk register

Timezone abbreviations are useful display labels, but they are weak storage keys. This register shows the exact risks for BST: ambiguity, seasonal changes, same-offset neighbors, and the safer value to store in software, calendars, or operations notes.

Abbreviation ambiguity risk

High

BST has 3 meanings across UTC+00:00 to UTC+11:00; use a city or IANA zone before scheduling.

Seasonal clock-change risk

Low

Asia/Dhaka is stable for the next-year transition scan, so the main risk is policy change or same-offset confusion.

Same-offset confusion risk

Medium

4 other abbreviation pages currently share +06:00; the same clock hour is not the same civil-time context.

Storage recommendation

Use exact zone

Store Asia/Dhaka or a UTC instant. Display BST only as a human-facing label after the exact zone is known.

Coverage breadth

24 zones

BST covers 24 IANA zones and 24 country groupings in this page's retained dataset.

UTC checkpoint conversions for BST

Four fixed UTC checkpoints expose whether BST crosses a local date boundary in Asia/Dhaka. This is the practical difference between a harmless clock conversion and a deadline, release, travel, or reporting mistake.

UTC midnight

same local date

UTC checkpoint: 00:00 UTC
BST reading: Thu, Nov 5, 06:00 GMT+6

BST keeps this checkpoint on the same calendar date as UTC in Asia/Dhaka.

Europe workday start

same local date

UTC checkpoint: 09:00 UTC
BST reading: Thu, Nov 5, 15:00 GMT+6

BST keeps this checkpoint on the same calendar date as UTC in Asia/Dhaka.

US/EU handoff

same local date

UTC checkpoint: 17:00 UTC
BST reading: Thu, Nov 5, 23:00 GMT+6

BST keeps this checkpoint on the same calendar date as UTC in Asia/Dhaka.

Late UTC cutoff

next local date

UTC checkpoint: 23:30 UTC
BST reading: Fri, Nov 6, 05:30 GMT+6

BST moves this checkpoint to the next local date in Asia/Dhaka, which matters for reports, releases, travel, and deadline wording.

Same-offset cluster audit

These abbreviation pages currently share +06:00with BST. They can show the same wall-clock hour while pointing at different countries, holidays, market calendars, languages, airports, and legal-time rules.

BST vs BTT

Bhutan Time

Open BTT

Representative zone: Asia/Thimphu
City context: Thimphu, Bhutan, Phuntsholing, Bhutan, and Tsirang, Bhutan
Country context: Bhutan

BTT shares the current UTC offset with BST, but it is anchored to Asia/Thimphu and Bhutan. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.

BST vs IOT

Indian Ocean Time

Open IOT

Representative zone: Indian/Chagos
City context: British Indian Ocean Territory
Country context: British Indian Ocean Territory

IOT shares the current UTC offset with BST, but it is anchored to Indian/Chagos and British Indian Ocean Territory. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.

BST vs KGT

Kyrgyzstan Time

Open KGT

Representative zone: Asia/Bishkek
City context: Bishkek, Kyrgyzstan, Osh, Kyrgyzstan, and Jalal-Abad, Kyrgyzstan
Country context: Kyrgyzstan

KGT shares the current UTC offset with BST, but it is anchored to Asia/Bishkek and Kyrgyzstan. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.

BST vs OMST

Omsk Time

Open OMST

Representative zone: Asia/Omsk
City context: Omsk, Russia, Tara, Russia, and Kalachinsk, Russia
Country context: Russia

OMST shares the current UTC offset with BST, but it is anchored to Asia/Omsk and Russia. Treat the shared offset as arithmetic only, not as the same holidays, cities, market calendars, or policy context.

BST contrast matrix

The hardest abbreviation mistakes happen when two labels share a similar offset. This matrix spells out what changes when the neighboring label is actually a different civil clock, city cluster, or source context.

BST vs GMT

nearby label

BST and GMT sit near each other in the catalog, but the live offset and representative-zone context differ. Use the exact IANA zone before storing or sharing the time.

BST anchor: BST: Bangladesh Time · Asia/Dhaka · +06:00 · Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast
GMT anchor: GMT: Greenwich Mean Time · Europe/London · +00:00 · London, United Kingdom, Abidjan, Ivory Coast, and Bamako, Mali
Country contrast: BST country anchors: Bangladesh, United Kingdom, and Ivory Coast. GMT country anchors: United Kingdom, Ivory Coast, and Mali.

Compare GMT

BST vs BTT

same offset

BST and BTT currently share +06:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.

BST anchor: BST: Bangladesh Time · Asia/Dhaka · +06:00 · Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast
BTT anchor: BTT: Bhutan Time · Asia/Thimphu · +06:00 · Thimphu, Bhutan, Phuntsholing, Bhutan, and Tsirang, Bhutan
Country contrast: BST country anchors: Bangladesh, United Kingdom, and Ivory Coast. BTT country anchors: Bhutan.

Compare BTT

BST vs IOT

same offset

BST and IOT currently share +06:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.

BST anchor: BST: Bangladesh Time · Asia/Dhaka · +06:00 · Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast
IOT anchor: IOT: Indian Ocean Time · Indian/Chagos · +06:00 · British Indian Ocean Territory
Country contrast: BST country anchors: Bangladesh, United Kingdom, and Ivory Coast. IOT country anchors: British Indian Ocean Territory.

Compare IOT

BST vs KGT

same offset

BST and KGT currently share +06:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.

BST anchor: BST: Bangladesh Time · Asia/Dhaka · +06:00 · Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast
KGT anchor: KGT: Kyrgyzstan Time · Asia/Bishkek · +06:00 · Bishkek, Kyrgyzstan, Osh, Kyrgyzstan, and Jalal-Abad, Kyrgyzstan
Country contrast: BST country anchors: Bangladesh, United Kingdom, and Ivory Coast. KGT country anchors: Kyrgyzstan.

Compare KGT

BST vs OMST

same offset

BST and OMST currently share +06:00, but they point at different civil-time labels, cities, countries, and source contexts. Treat the matching offset as arithmetic only, not semantic equivalence.

BST anchor: BST: Bangladesh Time · Asia/Dhaka · +06:00 · Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast
OMST anchor: OMST: Omsk Time · Asia/Omsk · +06:00 · Omsk, Russia, Tara, Russia, and Kalachinsk, Russia
Country contrast: BST country anchors: Bangladesh, United Kingdom, and Ivory Coast. OMST country anchors: Russia.

Compare OMST

BST vs CCT

nearby label

BST and CCT sit near each other in the catalog, but the live offset and representative-zone context differ. Use the exact IANA zone before storing or sharing the time.

BST anchor: BST: Bangladesh Time · Asia/Dhaka · +06:00 · Dhaka, Bangladesh, London, United Kingdom, and Abidjan, Ivory Coast
CCT anchor: CCT: Cocos Islands Time · Indian/Cocos · +06:30 · West Island, Cocos Islands
Country contrast: BST country anchors: Bangladesh, United Kingdom, and Ivory Coast. CCT country anchors: Cocos Islands.

Compare CCT

Editorial disambiguation

BST ambiguity reading

BST can mean British Summer Time in UK-facing schedules, but it can also appear as Bangladesh Standard Time in South Asia contexts. London and Dhaka are separated by five hours in summer and have completely different public holidays, languages, markets, and workweeks. This abbreviation needs a city check every time it appears outside an unmistakable UK source.

Use Europe/London when the source means British Summer Time.

Use Asia/Dhaka when the source means Bangladesh Standard Time.

Avoid storing BST without a city because the two common meanings are far apart.

Regional context behind BST

Bangladesh sits in Asia, specifically Southern Asia. Population 169,828,911, area 147,570 km², capital Dhaka. Civic markers behind BST include Bengali and BDT (Bangladeshi taka, ৳).

Bangladesh is linked as the country-level reference source for BST; the civic context above is drawn from structured country fields rather than copied reference prose.

Zone roster and clock behavior

BST in the Bangladesh Time meaning runs 6h ahead of UTC through South Asia, threading zones such as Asia/Dhaka (cities: Dhaka, Chattogram, and Gazipur). Country anchors: Bangladesh.

BST in the Greenwich Mean Time meaning anchors at UTC through Europe, threading zones such as Africa/Abidjan, Africa/Bamako, and Africa/Bissau (cities: London, Abidjan, and Bamako). Country anchors: United Kingdom, Ivory Coast, and Mali.

BST in the Bougainville Time meaning runs 11h ahead of UTC through Atlantic, Pacific, or Indian Ocean island cluster, threading zones such as Pacific/Bougainville (cities: Arawa). Country anchors: Papua New Guinea.

Bangladesh Time

Asia/Dhaka

Current reading: GMT+6 at +06:00 in Bangladesh.

Asia/Dhaka does not show a scheduled offset change in the next year, so the current offset can be treated as operationally stable for short-term planning.

City anchors include Dhaka, Chattogram, and Gazipur, while country anchors include Bangladesh.

Greenwich Mean Time

Africa/Abidjan

Current reading: GMT at +00:00 in Ivory Coast.

Africa/Abidjan does not show a scheduled offset change in the next year, so the current offset can be treated as operationally stable for short-term planning.