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Timezone converter
EST to BST currently uses Eastern Time in America/New_York and Bangladesh Time in Asia/Dhaka as the live reference pair, with a +10h live gap. EST and BST is the New York to UK summer pair. During British Summer Time the gap is four hours instead of five, which shifts the morning overlap window enough to matter for trading desks and scheduled news segments.
Last updated recently. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.
BST is ambiguous in this dataset, so the live converter uses Asia/Dhaka as the busiest reference zone while the city list below shows the wider label family.
From
Eastern Time
America/New_York · EDT -04:00
Major markets in this grouping include New York City, Toronto, Brooklyn, Queens.
To
Bangladesh Time
Asia/Dhaka · GMT+6 +06:00
Major markets in this grouping include Dhaka, London, Abidjan, Bamako.
Current gap
+10h
EST -04:00 vs BST +06:00
9-to-5 overlap
No shared block
Meetings usually need an early or late handoff.
Representative countries
United States, Canada, and Haiti / Bangladesh, United Kingdom, and Ivory Coast
Based on the busiest city and zone usage found in the current dataset.
EST (New York City, -04:00) to BST (Dhaka, +06:00) is currently a +10h conversion. Live coverage on the EST side is anchored by New York City, Toronto, Brooklyn, and Queens; the BST side draws from Dhaka, London, Abidjan, and Bamako.
EST and BST is the New York to UK summer pair. During British Summer Time the gap is four hours instead of five, which shifts the morning overlap window enough to matter for trading desks and scheduled news segments.
This pair is trans-Pacific, with one side in the Americas and the other in Asia or Oceania. The +10h gap is large enough that morning on one side reliably overlaps evening on the other, which is why this conversion mostly serves global supply chains, gaming launch schedules, and follow-the-sun engineering.
EST follows seasonal clock changes through America/New_York, while BST stays on a fixed offset year-round. That asymmetry is the real differentiator on this page: the gap widens or narrows by an hour twice a year, so calendar invites scheduled in one season often look wrong in the other.
EST and BST sit exactly 10h apart, which leaves no shared 9-to-5 block. Live meetings have to bend one side's day, so most teams settle for one of two narrow windows: very early on the late side, or very late on the early side. That makes async messages, recorded standups, and clear handoff notes more valuable than calendar invites.
Reference zone, current offsets, country and city anchors, overlap math, and date-shift answers for EST to BST.
Reference pair
America/New_York -> Asia/Dhaka
Live offsets
EST -04:00 vs BST +06:00
Meaning split
Eastern Time / Bangladesh Time
Country anchors
United States, Canada, and Haiti -> Bangladesh, United Kingdom, and Ivory Coast
City anchors
New York City, Toronto, Brooklyn, Queens -> Dhaka, London, Abidjan, Bamako
Workday overlap
No strict 9-to-5 overlap in the current offset state
Morning answer
9 AM EST = 7:00 PM BST, same day
Evening answer
6 PM EST = 4:00 AM BST, next day
Same-offset labels can share the same hour while still landing in different countries, calendars, cities, and workday windows. These notes show the practical context behind this conversion.
EST to BST is pinned to America/New_York -> Asia/Dhaka, with the shorthand labels shown as context. The city anchors are New York City, Toronto, Brooklyn, Queens on the EST side and Dhaka, London, Abidjan, Bamako on the BST side, with +10h between the live reference zones.
The 12 popular-hour answers include 6 same-day conversions, 6 next-day conversions, and 0 previous-day conversions. That distribution is what separates this page from a static offset chart.
Nearby labels sharing a current offset include EDT (From side), BTT (To side), IOT (To side), KGT (To side), OMST (To side). They may match mathematically, but their country calendars, city anchors, and common search intent differ from this exact pair.
EST: United States (US); 1508 mapped cities; capital Washington, D.C.; English; USD United States dollar | EST: Canada (CA); 310 mapped cities; capital Ottawa; English, French; CAD Canadian dollar | EST: Haiti (HT); 30 mapped cities; capital Port-au-Prince; French, Haitian Creole; HTG Haitian gourde | EST: Jamaica (JM); 11 mapped cities; capital Kingston; English, Jamaican Patois; JMD Jamaican dollar | EST: Mexico (MX); 6 mapped cities; capital Mexico City; Spanish; MXN Mexican peso | BST: Bangladesh (BD); 137 mapped cities; capital Dhaka; Bengali; BDT Bangladeshi taka | BST: United Kingdom (GB); 863 mapped cities; capital London; English; GBP British pound | BST: Ivory Coast (CI); 183 mapped cities; capital Yamoussoukro; French; XOF West African CFA franc
Offset behavior, DST gap changes, local calendar evidence, and the day-shift pattern across the most common conversion hours.
EST/BST is a long-haul handoff gap: America/New_York currently reads -04:00, Asia/Dhaka reads +06:00, and the live delta is +10h. This class decides whether the page behaves like a same-day planner or a handoff planner.
America/New_York changes from -04:00 (EDT) to -05:00 (EST) on November 1, 2026 at about 1:00 AM.
No country holiday snapshot is attached to this exact pair yet, so the page leans on city anchors, IANA zones, offsets, and the live conversion table instead of pretending a local calendar exists.
Across the 12 popular-hour answers, this pair has 6 same-day answers, 6 next-day answers, 0 previous-day answers. That mix is specific to the current America/New_York -> Asia/Dhaka relationship and helps users see whether dates must be written explicitly in invites, travel plans, and release schedules.
Same-offset converter clusters can look identical if the page only shows a numeric offset. This audit states whether the route should be indexed, which canonical peer it follows when consolidated, and what pair-specific evidence keeps the page useful.
This pair remains indexable because the route has enough pair-specific context: America/New_York -> Asia/Dhaka, country anchors, city anchors, calendar notes, and day-shift examples.
EST and BST are not currently a same-offset pair; the live delta is +10h. Same-offset neighbors are still listed because users often confuse nearby abbreviations.
EDT (From side, -04:00), BTT (To side, +06:00), IOT (To side, +06:00), KGT (To side, +06:00), OMST (To side, +06:00) The page keeps these labels visible so SGT/HKT/GST-style clusters do not blur into one generic offset page.
EST/BST uses 6 same-day answers, 6 next-day answers, 0 previous-day answers; 0h strict workday overlap; source zones America/New_York and Asia/Dhaka; country anchors United States, Canada, and Haiti -> Bangladesh, United Kingdom, and Ivory Coast.
Common places, calendars, markets, languages, and operating contexts behindEST and BST.
BST
BST is British Summer Time when used with Europe/London, not a generic abbreviation for every source that writes BST. It appears in UK summer schedules, London events, rail timetables, broadcasts, and company calendars while the UK is one hour ahead of GMT.
BST
A BST conversion should keep the date and Europe/London reference visible because the UK moves back to GMT in winter. A source that says BST outside the summer window may be using the label incorrectly or referring to a different abbreviation meaning.
Same-offset conversions can still land in different public-holiday, language, currency, and city-anchor contexts. These rows use the country profile and holiday snapshots behind each side of the pair.
EST
1,508 mapped city anchors; zones America/New_York.capital Washington, D.C.; English; USD United States dollar
Holiday snapshot: New Year's Day (Jan 1, Public) · Martin Luther King, Jr. Day (Jan 19, Public) · Lincoln's Birthday (Feb 12, Observance) · Presidents Day (Feb 16, Public) · Good Friday (Apr 3, Public)
EST
310 mapped city anchors; zones America/Atikokan, America/Toronto.capital Ottawa; English, French; CAD Canadian dollar
Holiday snapshot: New Year's Day (Jan 1, Public) · Louis Riel Day (Feb 16, Public) · Islander Day (Feb 16, Public) · Heritage Day (Feb 16, Public) · Family Day (Feb 16, Public)
EST
30 mapped city anchors; zones America/Port-au-Prince.capital Port-au-Prince; French, Haitian Creole; HTG Haitian gourde
Holiday snapshot: New Year's Day (Jan 1, Public) · Ancestry Day (Jan 2, Public) · Epiphany (Jan 6, Public) · Carnival (Feb 16, Public) · Carnival (Feb 17, Public)
EST
11 mapped city anchors; zones America/Jamaica.capital Kingston; English, Jamaican Patois; JMD Jamaican dollar
Holiday snapshot: New Year's Day (Jan 1, Public) · Ash Wednesday (Feb 18, Public) · Good Friday (Apr 3, Public) · Easter Monday (Apr 6, Public) · Labour Day (May 23, Public)
EST
6 mapped city anchors; zones America/Cancun.capital Mexico City; Spanish; MXN Mexican peso
Holiday snapshot: New Year's Day (Jan 1, Public) · Constitution Day (Feb 2, Public) · Benito Juárez's birthday (Mar 16, Public) · Maundy Thursday (Apr 2, Bank) · Good Friday (Apr 3, Bank)
BST
137 mapped city anchors; zones Asia/Dhaka.capital Dhaka; Bengali; BDT Bangladeshi taka
Holiday snapshot: International Mother Language Day (Feb 21, Public) · Independence and National Day (Mar 26, Public) · Bengali New Year (Apr 14, Public) · Labour Day (May 1, Public) · July Mass Uprising Day (Aug 5, Public)
These are the labels most likely to be confused with either side of this conversion. A matching UTC offset does not mean the same country, calendar, market, source convention, or user intent.
EST and EDT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
EST and EEST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
EST and EET are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
EST and AEDT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
EST and AEST are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
EST and WIT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
BST and GMT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
BST and BTT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
BST and IOT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
BST and KGT match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
BST and OMST match on offset right now, but the page should not collapse them: they carry different city anchors, country calendars, currencies, holidays, and user intent.
BST and CCT are close enough to be confused in search, but they are not the same clock label and should be pinned to exact IANA zones.
Abbreviations with the same UTC offset can still represent different countries, cities, currencies, languages, and civil-time histories. This roster keeps theEST to BST page grounded in those concrete places.
EST: United States (US); 1508 mapped cities; zones America/New York; city anchors New York City (America/New_York, pop 8,804,190), Brooklyn (America/New_York, pop 2,736,074), Queens (America/New_York, pop 2,316,841), Philadelphia (America/New_York, pop 1,573,916); official United States of America; capital Washington, D.C.; region Americas; subregion North America; population 340,110,988; area 9,525,067 km2; languages English; currency USD United States dollar.
EST: Canada (CA); 310 mapped cities; zones America/Atikokan, America/Toronto; city anchors Toronto (America/Toronto, pop 2,794,356), Montréal (America/Toronto, pop 1,762,949), Ottawa (America/Toronto, pop 1,017,449), Mississauga (America/Toronto, pop 717,961); official Canada; capital Ottawa; region Americas; subregion North America; population 41,651,653; area 9,984,670 km2; languages English, French; currency CAD Canadian dollar.
EST: Haiti (HT); 30 mapped cities; zones America/Port-au-Prince; city anchors Port-au-Prince (America/Port-au-Prince, pop 1,234,742), Carrefour (America/Port-au-Prince, pop 442,156), Delmas (America/Port-au-Prince, pop 382,920), Port-de-Paix (America/Port-au-Prince, pop 306,217); official Republic of Haiti; capital Port-au-Prince; region Americas; subregion Caribbean; population 11,867,032; area 27,750 km2; languages French, Haitian Creole; currency HTG Haitian gourde.
EST: Jamaica (JM); 11 mapped cities; zones America/Jamaica; city anchors Kingston (America/Jamaica, pop 937,700), New Kingston (America/Jamaica, pop 583,958), Spanish Town (America/Jamaica, pop 145,018), Portmore (America/Jamaica, pop 102,861); official Jamaica; capital Kingston; region Americas; subregion Caribbean; population 2,825,544; area 10,991 km2; languages English, Jamaican Patois; currency JMD Jamaican dollar.
EST: Mexico (MX); 6 mapped cities; zones America/Cancun; city anchors Cancún (America/Cancun, pop 888,797), Chetumal (America/Cancun, pop 169,028), Playa del Carmen (America/Cancun, pop 149,923), Cozumel (America/Cancun, pop 77,236); official United Mexican States; capital Mexico City; region Americas; subregion North America; population 130,575,786; area 1,964,375 km2; languages Spanish; currency MXN Mexican peso.
BST: Bangladesh (BD); 137 mapped cities; zones Asia/Dhaka; city anchors Dhaka (Asia/Dhaka, pop 10,356,500), Chattogram (Asia/Dhaka, pop 3,920,222), Gazipur (Asia/Dhaka, pop 2,674,697), Khulna (Asia/Dhaka, pop 1,500,689); official People's Republic of Bangladesh; capital Dhaka; region Asia; subregion Southern Asia; population 169,828,911; area 147,570 km2; languages Bengali; currency BDT Bangladeshi taka.
BST: United Kingdom (GB); 863 mapped cities; zones Europe/London; city anchors London (Europe/London, pop 8,961,989), Birmingham (Europe/London, pop 1,157,603), Glasgow (Europe/London, pop 626,410), Manchester (Europe/London, pop 568,996); official United Kingdom of Great Britain and Northern Ireland; capital London; region Europe; subregion Northern Europe; population 69,281,437; area 244,376 km2; languages English; currency GBP British pound.
BST: Ivory Coast (CI); 183 mapped cities; zones Africa/Abidjan; city anchors Abidjan (Africa/Abidjan, pop 6,321,017), Abobo (Africa/Abidjan, pop 1,340,083), Bouaké (Africa/Abidjan, pop 832,371), Korhogo (Africa/Abidjan, pop 440,926); official Republic of Côte d'Ivoire; capital Yamoussoukro; region Africa; subregion Western Africa; population 31,719,275; area 322,463 km2; languages French; currency XOF West African CFA franc.
BST: Mali (ML); 59 mapped cities; zones Africa/Bamako; city anchors Bamako (Africa/Bamako, pop 4,227,569), Sikasso (Africa/Bamako, pop 349,324), Koutiala (Africa/Bamako, pop 218,031), Ségou (Africa/Bamako, pop 205,787); official Republic of Mali; capital Bamako; region Africa; subregion Western Africa; population 22,395,489; area 1,240,192 km2; languages French; currency XOF West African CFA franc.
BST: Senegal (SN); 70 mapped cities; zones Africa/Dakar; city anchors Dakar (Africa/Dakar, pop 2,646,503), Touba (Africa/Dakar, pop 1,120,824), Pikine (Africa/Dakar, pop 874,062), Guédiawaye (Africa/Dakar, pop 329,659); official Republic of Senegal; capital Dakar; region Africa; subregion Western Africa; population 18,593,258; area 196,722 km2; languages French; currency XOF West African CFA franc.
Same-offset converter pages can look deceptively alike. These records pin the page to the exact abbreviations, IANA zones, countries, and city anchors behind EST and BST.
EST (est) is not marked ambiguous in the abbreviation catalog. Meaning records: Eastern Time at UTC-05:00; listed zones America/Atikokan; America/Cancun; America/Cayman; America/Jamaica; America/Panama; America/Nassau; America/New York; America/Port-au-Prince; America/Grand Turk; America/Toronto; source label Eastern Time - Atikokan.
EST currently maps to 8 country footprints in the converter dataset: United States (US), Canada (CA), Haiti (HT), Jamaica (JM), Mexico (MX), Panama (PA), Bahamas (BS), Cayman Islands (KY). The footprint spans 9 IANA zones across 10 city anchors.
EST city anchors in this indexed page family: New York City [new-york-city-US, US, America/New_York, pop 8,804,190]; Toronto [toronto-CA, CA, America/Toronto, pop 2,794,356]; Brooklyn [brooklyn-US, US, America/New_York, pop 2,736,074]; Queens [queens-US, US, America/New_York, pop 2,316,841]; Montréal [montreal-CA, CA, America/Toronto, pop 1,762,949]; Philadelphia [philadelphia-US, US, America/New_York, pop 1,573,916]; Manhattan [manhattan-5125771-US, US, America/New_York, pop 1,487,536]; The Bronx [the-bronx-US, US, America/New_York, pop 1,385,108]; Port-au-Prince [port-au-prince-HT, HT, America/Port-au-Prince, pop 1,234,742]; Ottawa [ottawa-CA, CA, America/Toronto, pop 1,017,449].
EST: United States (US); 1508 mapped cities; zones America/New York; city anchors New York City (America/New_York, pop 8,804,190), Brooklyn (America/New_York, pop 2,736,074), Queens (America/New_York, pop 2,316,841), Philadelphia (America/New_York, pop 1,573,916); official United States of America; capital Washington, D.C.; region Americas; subregion North America; population 340,110,988; area 9,525,067 km2; languages English; currency USD United States dollar. EST: Canada (CA); 310 mapped cities; zones America/Atikokan, America/Toronto; city anchors Toronto (America/Toronto, pop 2,794,356), Montréal (America/Toronto, pop 1,762,949), Ottawa (America/Toronto, pop 1,017,449), Mississauga (America/Toronto, pop 717,961); official Canada; capital Ottawa; region Americas; subregion North America; population 41,651,653; area 9,984,670 km2; languages English, French; currency CAD Canadian dollar. EST: Haiti (HT); 30 mapped cities; zones America/Port-au-Prince; city anchors Port-au-Prince (America/Port-au-Prince, pop 1,234,742), Carrefour (America/Port-au-Prince, pop 442,156), Delmas (America/Port-au-Prince, pop 382,920), Port-de-Paix (America/Port-au-Prince, pop 306,217); official Republic of Haiti; capital Port-au-Prince; region Americas; subregion Caribbean; population 11,867,032; area 27,750 km2; languages French, Haitian Creole; currency HTG Haitian gourde. EST: Jamaica (JM); 11 mapped cities; zones America/Jamaica; city anchors Kingston (America/Jamaica, pop 937,700), New Kingston (America/Jamaica, pop 583,958), Spanish Town (America/Jamaica, pop 145,018), Portmore (America/Jamaica, pop 102,861); official Jamaica; capital Kingston; region Americas; subregion Caribbean; population 2,825,544; area 10,991 km2; languages English, Jamaican Patois; currency JMD Jamaican dollar. EST: Mexico (MX); 6 mapped cities; zones America/Cancun; city anchors Cancún (America/Cancun, pop 888,797), Chetumal (America/Cancun, pop 169,028), Playa del Carmen (America/Cancun, pop 149,923), Cozumel (America/Cancun, pop 77,236); official United Mexican States; capital Mexico City; region Americas; subregion North America; population 130,575,786; area 1,964,375 km2; languages Spanish; currency MXN Mexican peso.
BST (bst) is ambiguous in the abbreviation catalog. Meaning records: Bangladesh Time at UTC+06:00; listed zones Asia/Dhaka; source label Bangladesh Time - Dhaka, Chattogram, Gazipur, Khulna | Bougainville Time at UTC+11:00; listed zones Pacific/Bougainville; source label Bougainville Time - Arawa | Greenwich Mean Time at UTC+01:00; listed zones Africa/Abidjan; Africa/Bamako; Africa/Bissau; Africa/Conakry; Africa/Dakar; America/Danmarkshavn; Africa/Freetown; Atlantic/St Helena; Africa/Accra; Africa/Lome; Africa/Monrovia; Africa/Nouakchott; source label Greenwich Mean Time - Abidjan, Abobo, Bouaké, Korhogo.
BST currently maps to 8 country footprints in the converter dataset: Bangladesh (BD), United Kingdom (GB), Ivory Coast (CI), Mali (ML), Senegal (SN), Ghana (GH), Burkina Faso (BF), Togo (TG). The footprint spans 8 IANA zones across 10 city anchors.
BST city anchors in this indexed page family: Dhaka [dhaka-BD, BD, Asia/Dhaka, pop 10,356,500]; London [london-GB, GB, Europe/London, pop 8,961,989]; Abidjan [abidjan-CI, CI, Africa/Abidjan, pop 6,321,017]; Bamako [bamako-ML, ML, Africa/Bamako, pop 4,227,569]; Chattogram [chattogram-BD, BD, Asia/Dhaka, pop 3,920,222]; Gazipur [gazipur-BD, BD, Asia/Dhaka, pop 2,674,697]; Dakar [dakar-SN, SN, Africa/Dakar, pop 2,646,503]; Kumasi [kumasi-GH, GH, Africa/Accra, pop 2,544,530]; Ouagadougou [ouagadougou-BF, BF, Africa/Ouagadougou, pop 2,415,266]; Lomé [lome-TG, TG, Africa/Lome, pop 2,188,376].
BST: Bangladesh (BD); 137 mapped cities; zones Asia/Dhaka; city anchors Dhaka (Asia/Dhaka, pop 10,356,500), Chattogram (Asia/Dhaka, pop 3,920,222), Gazipur (Asia/Dhaka, pop 2,674,697), Khulna (Asia/Dhaka, pop 1,500,689); official People's Republic of Bangladesh; capital Dhaka; region Asia; subregion Southern Asia; population 169,828,911; area 147,570 km2; languages Bengali; currency BDT Bangladeshi taka. BST: United Kingdom (GB); 863 mapped cities; zones Europe/London; city anchors London (Europe/London, pop 8,961,989), Birmingham (Europe/London, pop 1,157,603), Glasgow (Europe/London, pop 626,410), Manchester (Europe/London, pop 568,996); official United Kingdom of Great Britain and Northern Ireland; capital London; region Europe; subregion Northern Europe; population 69,281,437; area 244,376 km2; languages English; currency GBP British pound. BST: Ivory Coast (CI); 183 mapped cities; zones Africa/Abidjan; city anchors Abidjan (Africa/Abidjan, pop 6,321,017), Abobo (Africa/Abidjan, pop 1,340,083), Bouaké (Africa/Abidjan, pop 832,371), Korhogo (Africa/Abidjan, pop 440,926); official Republic of Côte d'Ivoire; capital Yamoussoukro; region Africa; subregion Western Africa; population 31,719,275; area 322,463 km2; languages French; currency XOF West African CFA franc. BST: Mali (ML); 59 mapped cities; zones Africa/Bamako; city anchors Bamako (Africa/Bamako, pop 4,227,569), Sikasso (Africa/Bamako, pop 349,324), Koutiala (Africa/Bamako, pop 218,031), Ségou (Africa/Bamako, pop 205,787); official Republic of Mali; capital Bamako; region Africa; subregion Western Africa; population 22,395,489; area 1,240,192 km2; languages French; currency XOF West African CFA franc. BST: Senegal (SN); 70 mapped cities; zones Africa/Dakar; city anchors Dakar (Africa/Dakar, pop 2,646,503), Touba (Africa/Dakar, pop 1,120,824), Pikine (Africa/Dakar, pop 874,062), Guédiawaye (Africa/Dakar, pop 329,659); official Republic of Senegal; capital Dakar; region Africa; subregion Western Africa; population 18,593,258; area 196,722 km2; languages French; currency XOF West African CFA franc.
EST is a North or South American civil-time label, currently 4h behind UTC at -04:00. The label covers 10 IANA zones across 9 countries, with New York City as the busiest live reference. The busiest cities using EST in the current catalog are New York City, Toronto, Brooklyn, Queens, and Montréal. The lead live reference on this page is New York City (America/New_York), currently at -04:00 (EDT). Those cities are what give EST its actual feel rather than the abstract offset. EST currently shows -04:00, but America/New_York observes seasonal clock changes — the next transition is around November 1, 2026. That means the offset on this page is a snapshot, not a permanent fact, so long-range scheduling should pin the underlying IANA zone instead of the abbreviation.
EST reads cleanly across the Americas in this dataset, but the same letters can mean different things elsewhere (notably CST, EST, and IST overlap with non-American labels). Pin the IANA zone when the audience is international. America/New_York has an upcoming offset change on November 1, 2026. After that point, EST on this page will read a different UTC offset until the next transition, so any saved timestamp should anchor to the IANA zone rather than the abbreviation. For precise work, the safest equivalent of EST is the exact IANA zone used by your city or system. America/New_York sits at -04:00, behind UTC, which means daily logs in this zone reach a new calendar date after UTC does — relevant for date-aligned reports and billing cutoffs.
EST should not be blindly swapped with nearby labels. Adjacent references in the catalog: EDT (-04:00, Shares the eastern time family); EEST (+03:00, Shares the eastern time family); EET (+03:00, Shares the eastern time family); AEDT (+10:00, Shares the eastern time family); AEST (+10:00, Shares the eastern time family); WIT (+09:00, Shares the eastern time family).
EST has 1 meaning record, offset range UTC-05:00 to UTC-04:00, labels Eastern Time, and 9 country footprints across 10 IANA zones.
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.
BST appears with 3 distinct meanings in current data, splitting across UTC+00:00 to UTC+11:00. The short label looks tidy in writing but quietly hides which place you mean — pick a city, a country, or an IANA zone before it matters. Asia/Dhaka does not show an offset change in the next year, which makes BST predictable for short-term scheduling. Predictable is not the same as permanent — civil-time rules still get changed by governments on relatively short notice. For precise work, the safest equivalent of BST is the exact IANA zone used by your city or system. Asia/Dhaka sits at +06:00, ahead of UTC, which means daily logs in this zone reach a new calendar date before UTC does — a small detail that breaks date-based reporting if missed.
BST should not be blindly swapped with nearby labels. Adjacent references in the catalog: GMT (+01:00, Shares the greenwich time family); BTT (+06:00, Currently sits on the same UTC offset); IOT (+06:00, Currently sits on the same UTC offset); KGT (+06:00, Currently sits on the same UTC offset); OMST (+06:00, Currently sits on the same UTC offset); CCT (+06:30, Runs on a nearby UTC offset).
BST has 3 meaning records, offset range UTC+00:00 to UTC+11:00, labels Bangladesh Time, Greenwich Mean Time, Bougainville Time, and 24 country footprints across 24 IANA zones.
EST country anchor United States: The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic consisting of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States also asserts sovereignty over five major island territories and various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's third-largest land area and third-largest population, exceeding 341 million. Source: Wikipedia.
BST country anchor Bangladesh: Bangladesh, officially the People's Republic of Bangladesh, is a country in South Asia. It is the eighth-most populous country in the world and among the most densely populated with a population of almost 176 million within an area of 148,460 square kilometres (57,320 sq mi). Bangladesh shares land borders with India to the north, west, and east, and Myanmar to the southeast. It has a coastline along the Bay of Bengal to its south and is separated from Bhutan and Nepal by the Siliguri Corridor, and from China by the Indian state of Sikkim to its north. Dhaka, the capital and largest city, is the nation's political, financial, and cultural centre, with its most affluent neighborhood Gulshan being among the most posh neighborhoods in South Asia. Chittagong is the second-largest city and the busiest port of the country. Source: Wikipedia.
BST is British Summer Time when used with Europe/London, not a generic abbreviation for every source that writes BST. It appears in UK summer schedules, London events, rail timetables, broadcasts, and company calendars while the UK is one hour ahead of GMT.
A BST conversion should keep the date and Europe/London reference visible because the UK moves back to GMT in winter. A source that says BST outside the summer window may be using the label incorrectly or referring to a different abbreviation meaning.
EST/BST uses America/New_York -> Asia/Dhaka, offset delta +10h, overlap 0h, route /convert/est/bst/, and live abbreviation readings EDT/GMT+6.
Reference fields include this converter pair's abbreviation records, representative IANA zones, current offsets, city anchors, country profiles, overlap math, conversion examples, and dossier notes.
EST coverage on this page is led by New York City, United States, Toronto, Canada, Brooklyn, United States, and Queens, United States, with 2 more in the live dataset. That mix is what makes EST feel anchored to East Coast and Central American business activity in practice rather than just an abbreviation on a chart.
BST coverage is led by Dhaka, Bangladesh, London, United Kingdom, Abidjan, Ivory Coast, and Bamako, Mali, with 2 more anchoring the wider label family. Combined with the EST side, this conversion ends up describing trans-Pacific outsourcing handoffs, gaming and entertainment release windows, and follow-the-sun engineering rotations.
Adjust the time. Digits roll like an odometer, and the swap button flips the zones.
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| EST | BST | Day relation |
|---|---|---|
| 9:00 AM | 7:00 PMFri, May 29 | same day |
| 12:00 PM | 10:00 PMFri, May 29 | same day |
| 3:00 PM | 1:00 AMSat, May 30 | next day |
| 6:00 PM | 4:00 AMSat, May 30 | next day |
| 9:00 PM | 7:00 AMSat, May 30 | next day |
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| BST | EST | Day relation |
|---|---|---|
| 9:00 AM | 11:00 PMThu, May 28 | previous day |
| 12:00 PM | 2:00 AMFri, May 29 | same day |
| 3:00 PM | 5:00 AMFri, May 29 | same day |
| 6:00 PM | 8:00 AMFri, May 29 | same day |
| 9:00 PM | 11:00 AMFri, May 29 | same day |
EST to BST ranges from EST 9:00 AM (which lands at BST 7:00 PM) through EST 9:00 PM (BST 7:00 AM). Most of those slots fall on a different calendar day on the BST side, which is why this direction always needs explicit dates in invites and ticket comments — the time alone is not enough.
BST to EST ranges from BST 9:00 AM (which lands at EST 11:00 PM) through BST 9:00 PM (EST 11:00 AM). With no clean 9-to-5 overlap between BST and EST, both ends of this range push outside standard hours — useful for recorded standups and async work, awkward for live calls.
These direct answers are here for the exact-intent searches people actually use, like “10 AM EST to BST” or “4 PM EST in BST”.
8 AM EST = 6:00 PM BST (18:00). On today's live calendar that lands on Fri, May 29 in BST, which means the answer is a same day conversion rather than a static offset lookup.
9 AM EST = 7:00 PM BST (19:00). On today's live calendar that lands on Fri, May 29 in BST, which means the answer is a same day conversion rather than a static offset lookup.
10 AM EST = 8:00 PM BST (20:00). On today's live calendar that lands on Fri, May 29 in BST, which means the answer is a same day conversion rather than a static offset lookup.
11 AM EST = 9:00 PM BST (21:00). On today's live calendar that lands on Fri, May 29 in BST, which means the answer is a same day conversion rather than a static offset lookup.
12 PM EST = 10:00 PM BST (22:00). On today's live calendar that lands on Fri, May 29 in BST, which means the answer is a same day conversion rather than a static offset lookup.
1 PM EST = 11:00 PM BST (23:00). On today's live calendar that lands on Fri, May 29 in BST, which means the answer is a same day conversion rather than a static offset lookup.
2 PM EST = 12:00 AM BST (00:00). On today's live calendar that lands on Sat, May 30 in BST, which means the answer is a next day conversion rather than a static offset lookup.
3 PM EST = 1:00 AM BST (01:00). On today's live calendar that lands on Sat, May 30 in BST, which means the answer is a next day conversion rather than a static offset lookup.
4 PM EST = 2:00 AM BST (02:00). On today's live calendar that lands on Sat, May 30 in BST, which means the answer is a next day conversion rather than a static offset lookup.
5 PM EST = 3:00 AM BST (03:00). On today's live calendar that lands on Sat, May 30 in BST, which means the answer is a next day conversion rather than a static offset lookup.
6 PM EST = 4:00 AM BST (04:00). On today's live calendar that lands on Sat, May 30 in BST, which means the answer is a next day conversion rather than a static offset lookup.
9 PM EST = 7:00 AM BST (07:00). On today's live calendar that lands on Sat, May 30 in BST, which means the answer is a next day conversion rather than a static offset lookup.
The live gap is +10h right now, based on America/New_York at -04:00 and Asia/Dhaka at +06:00. America/New_York changes offset on November 1, 2026, so the gap moves to +11h after that transition.
There is no strict 9 AM to 5 PM overlap right now, so this pair is better for handoffs, travel planning, or async coordination than for midday meetings.
America/New_York
EDT · -04:00
Asia/Dhaka
GMT+6 · +06:00
These are the busiest live references selected from the abbreviation families on this page.
| EST | BST |
|---|---|
| 20:00 | 06:00 |
| 21:00 | 07:00 |
| 22:00 | 08:00 |
| 23:00 | 09:00 |
| 00:00 | 10:00 |
| 01:00 | 11:00 |
| 02:00 | 12:00 |
| 03:00 | 13:00 |
| 04:00 | 14:00 |
| 05:00 | 15:00 |
| 06:00 | 16:00 |
| 07:00 | 17:00 |
| 08:00 | 18:00 |
| 09:00 | 19:00 |
| 10:00 | 20:00 |
| 11:00 | 21:00 |
| 12:00 | 22:00 |
| 13:00 | 23:00 |
| 14:00 | 00:00 |
| 15:00 | 01:00 |
| 16:00 | 02:00 |
| 17:00 | 03:00 |
| 18:00 | 04:00 |
| 19:00 | 05:00 |
Countries represented here include United States, Canada, and Haiti.
Countries represented here include Bangladesh, United Kingdom, and Ivory Coast.
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