Chittagong Time to BST Converter
GMT is 6 hours behind BST. 9:00 AM BST = 3:00 AM GMT.
GMT is 6 hours behind BST at the moment. To convert Chittagong Time to BST, subtract 6 hours from the Chittagong Time time: 9:00 AM BST = 3:00 AM GMT.
Chittagong Time (Chittagong time) is used in Chittagong, Bangladesh. BST (British Time) is used in United Kingdom from late March to late October.
BST here means British Summer Time, not Bangladesh Standard Time. BST (British Summer Time) is not in force right now: United Kingdom from late March to late October is currently on GMT. This page uses whichever name applies on the date you pick, so the numbers below say GMT.
Chittagong Time to BST time conversion table
Chittagong Time to BST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Chittagong Time | BST | Day |
|---|---|---|
| 12:00 AM BST | 6:00 PM GMT | previous day |
| 1:00 AM BST | 7:00 PM GMT | previous day |
| 2:00 AM BST | 8:00 PM GMT | previous day |
| 3:00 AM BST | 9:00 PM GMT | previous day |
| 4:00 AM BST | 10:00 PM GMT | previous day |
| 5:00 AM BST | 11:00 PM GMT | previous day |
| 6:00 AM BST | 12:00 AM GMT | night |
| 7:00 AM BST | 1:00 AM GMT | night |
| 8:00 AM BST | 2:00 AM GMT | night |
| 9:00 AM BST | 3:00 AM GMT | night |
| 10:00 AM BST | 4:00 AM GMT | night |
| 11:00 AM BST | 5:00 AM GMT | night |
| 12:00 PM BST | 6:00 AM GMT | — |
| 1:00 PM BST | 7:00 AM GMT | — |
| 2:00 PM BST | 8:00 AM GMT | — |
| 3:00 PM BST | 9:00 AM GMT | work hours |
| 4:00 PM BST | 10:00 AM GMT | work hours |
| 5:00 PM BST | 11:00 AM GMT | — |
| 6:00 PM BST | 12:00 PM GMT | — |
| 7:00 PM BST | 1:00 PM GMT | — |
| 8:00 PM BST | 2:00 PM GMT | — |
| 9:00 PM BST | 3:00 PM GMT | — |
| 10:00 PM BST | 4:00 PM GMT | — |
| 11:00 PM BST | 5:00 PM GMT | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Chittagong Time to BST
Subtract 6 hours from the Chittagong Time time to get BST.
Example: 9:00 AM BST = 3:00 AM GMT.
Across midnight: 1:00 AM BST = 7:00 PM GMT (previous day). The date changes, so always check the day as well as the hour.
Time difference between Chittagong Time and BST
The time difference between Chittagong Time and BST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 28 Mar 2026: BST is 6 hours behind of Chittagong Time.
- 29 Mar 2026 – 24 Oct 2026: BST is 5 hours behind of Chittagong Time.
- 25 Oct 2026 – 31 Dec 2026: BST is 6 hours behind of Chittagong Time.
Chittagong Time and BST during daylight saving time
- Chittagong Time does not observe daylight saving time; it stays on UTC+6 all year.
- BST next changes on 28 Mar 2027: clocks go forward one hour at 00:59 local time, from GMT (UTC+0) to BST (UTC+1).
Best time for a meeting between Chittagong Time and BST
Chittagong Time and BST share 2 hours of the 9 AM–5 PM working day. Any time between 3:00 PM and 5:00 PM BST lands between 9:00 AM and 11:00 AM GMT, inside working hours for both.
Chittagong Time to BST FAQ
What is the time difference between Chittagong Time and BST?
Right now GMT is 6 hours behind BST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Chittagong Time in BST?
9:00 AM BST is 3:00 AM GMT.
What is 12 PM (noon) Chittagong Time in BST?
12:00 PM BST is 6:00 AM GMT.
Is BST ahead of or behind Chittagong Time?
GMT is 6 hours behind BST, so it is earlier in BST than in Chittagong Time.
Does Chittagong Time change for daylight saving time?
No. Chittagong Time stays on the same offset all year, so conversions never shift for daylight saving time.
Does BST change for daylight saving time?
Yes. BST next changes on 28 Mar 2027, when clocks go forward one hour from GMT to BST.
What is the best time for a meeting between Chittagong Time and BST?
Chittagong Time and BST share 2 hours of the 9 AM–5 PM working day. Any time between 3:00 PM and 5:00 PM BST lands between 9:00 AM and 11:00 AM GMT, inside working hours for both.
Related conversions
Convert BST to Chittagong Time
Convert Chittagong Time to other time zones
Convert other time zones to BST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.