Convert Bangladesh Standard Time to India Standard Time
Instantly convert Bangladesh Standard Time (BST) to India Standard Time (IST) with our free online calculator.
Bangladesh Standard Time
11:20:53 AM
Wed, Jun 24 (BST)
India Standard Time
10:50:53 AM
Wed, Jun 24 (IST)
Convert a Specific Time
24-Hour Comparison
| BST | IST |
|---|---|
| 12:00 AM | 11.5:00 PM(-1d) |
| 1:00 AM | 0.5:00 AM |
| 2:00 AM | 1.5:00 AM |
| 3:00 AM | 2.5:00 AM |
| 4:00 AM | 3.5:00 AM |
| 5:00 AM | 4.5:00 AM |
| 6:00 AM | 5.5:00 AM |
| 7:00 AM | 6.5:00 AM |
| 8:00 AM | 7.5:00 AM |
| 9:00 AM | 8.5:00 AM |
| 10:00 AM | 9.5:00 AM |
| 11:00 AM | 10.5:00 AM |
| 12:00 PM | 11.5:00 AM |
| 1:00 PM | 0.5:00 PM |
| 2:00 PM | 1.5:00 PM |
| 3:00 PM | 2.5:00 PM |
| 4:00 PM | 3.5:00 PM |
| 5:00 PM | 4.5:00 PM |
| 6:00 PM | 5.5:00 PM |
| 7:00 PM | 6.5:00 PM |
| 8:00 PM | 7.5:00 PM |
| 9:00 PM | 8.5:00 PM |
| 10:00 PM | 9.5:00 PM |
| 11:00 PM | 10.5:00 PM |
How to Convert Bangladesh Standard Time to India Standard Time
Formula
To convert Bangladesh Standard Time (BST) to India Standard Time (IST): Convert BST to IST
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 India Standard Time (IST)
India Standard Time (IST, IANA: Asia/Kolkata) is the civil time of the Republic of India and Sri Lanka, set at UTC+5:30 — one of the world's most populous 30-minute-offset time zones. India does not observe Daylight Saving Time per the Government of India directive (a brief DST trial in 1942-1945 during WWII was discontinued; subsequent proposals from 2010-2017 were rejected by the Indian Government citing minimal energy savings + agricultural sector disruption). IST is defined as the local mean solar time at 82.5°E longitude (passing through Shankargarh fort in Uttar Pradesh, with the reference clock at the National Physical Laboratory in New Delhi per the Indian Institute of Astrophysics). The 30-minute offset is preserved because India's east-west extent (68°E to 97°E) spans ~28° of longitude — approximately 2 hours of solar time — and the central meridian is most representative for a single unified zone. IST serves approximately 1.4 billion people in India + 22 million in Sri Lanka (Sri Lanka observes SLST = UTC+5:30, identical to IST). Major cities: Mumbai (12.5M), Delhi (16.8M, NCR 29M), Bengaluru (8.4M), Hyderabad (10M), Chennai (7M), Kolkata (4.5M), Ahmedabad (5.5M), Pune (3.1M). Affects: BSE/NSE stock exchanges, IPL Indian Premier League cricket schedules.