Convert Bangladesh Standard Time to Greenwich Mean Time
Instantly convert Bangladesh Standard Time (BST) to Greenwich Mean Time (GMT) with our free online calculator.
Bangladesh Standard Time
11:20:53 AM
Wed, Jun 24 (BST)
Greenwich Mean Time
05:20:53 AM
Wed, Jun 24 (GMT)
Convert a Specific Time
24-Hour Comparison
| BST | GMT |
|---|---|
| 12:00 AM | 6:00 PM(-1d) |
| 1:00 AM | 7:00 PM(-1d) |
| 2:00 AM | 8:00 PM(-1d) |
| 3:00 AM | 9:00 PM(-1d) |
| 4:00 AM | 10:00 PM(-1d) |
| 5:00 AM | 11:00 PM(-1d) |
| 6:00 AM | 12:00 AM |
| 7:00 AM | 1:00 AM |
| 8:00 AM | 2:00 AM |
| 9:00 AM | 3:00 AM |
| 10:00 AM | 4:00 AM |
| 11:00 AM | 5:00 AM |
| 12:00 PM | 6:00 AM |
| 1:00 PM | 7:00 AM |
| 2:00 PM | 8:00 AM |
| 3:00 PM | 9:00 AM |
| 4:00 PM | 10:00 AM |
| 5:00 PM | 11:00 AM |
| 6:00 PM | 12:00 PM |
| 7:00 PM | 1:00 PM |
| 8:00 PM | 2:00 PM |
| 9:00 PM | 3:00 PM |
| 10:00 PM | 4:00 PM |
| 11:00 PM | 5:00 PM |
How to Convert Bangladesh Standard Time to Greenwich Mean Time
Formula
To convert Bangladesh Standard Time (BST) to Greenwich Mean Time (GMT): Convert BST to GMT
About Bangladesh Standard Time (BST)
Bangladesh Standard Time (BST, IANA: Asia/Dhaka) is the civil time of the People's Republic of Bangladesh, set at UTC+6:00 year-round. Bangladesh introduced Daylight Saving Time in 2009 (clocks advanced one hour) but abolished it later in 2009 after public confusion + religious-prayer-time complications. BST is identical in offset to Bhutan Time (BTT), Kyrgyzstan Time (KGT), Omsk Time (Russian Federation Yekaterinburg region), and Vostok Antarctica Time — facilitating cross-Central-Asia + South-Asia coordination. The 'BST' abbreviation is ambiguous globally — it also stands for British Summer Time (UTC+1), so in international aviation/business contexts the IANA identifier 'Asia/Dhaka' is preferred. BST serves approximately 170 million Bangladeshi people across 8 divisions + 64 districts. Major cities: Dhaka (10M city, 22M metro — the world's 4th most populous city after Tokyo/Delhi/Shanghai), Chittagong (2.6M city, 5.5M metro — main seaport on the Bay of Bengal), Khulna (660K), Rajshahi (450K), Sylhet (480K), Barisal (330K), Rangpur (340K), Mymensingh (260K). Affects: Dhaka Stock Exchange (DSE) trading hours, garment-industry shift scheduling (textile manufacturing is Bangladesh's largest export industry).
About Greenwich Mean Time (GMT)
Greenwich Mean Time (GMT, IANA: Europe/London) is the historic and current civil time of the United Kingdom (during winter), Ireland (during winter), Portugal mainland (during winter), Iceland (year-round), and most West African countries. GMT is set at UTC+0 — the time on the Prime Meridian (0° longitude) running through the Royal Observatory in Greenwich, southeast London. Established as the global time reference by the 1884 International Meridian Conference in Washington DC, GMT served as the world's primary civil-time reference from 1884 until 1972 when UTC (Coordinated Universal Time) was adopted as the new precision standard. The UK switches from GMT to British Summer Time (BST = UTC+1) at 01:00 GMT on the last Sunday of March and back to GMT at 02:00 BST on the last Sunday of October per EU Directive 2000/84/EC (UK retained this schedule after Brexit). GMT affects: London Stock Exchange (LSE) trading hours, BBC World Service broadcast time-stamps, all aviation NOTAMs and weather METARs which use UTC = GMT, and ICAO + IMO worldwide maritime/aviation coordination.