BST to GMT converter
GMT is 6 hours behind BST right now. Live clocks on both sides, a direct time input, the full 24-hour table with a permalink per hour, and the real daylight-saving state — computed from the IANA tz database on every request, never from a stored offset.
Convert an exact time type it — no sliders
Conversion runs in your browser against the same IANA rules the server uses, so it keeps working offline and nothing you type is sent anywhere.
Daylight saving right now
Greenwich Mean Time
Etc/GMT is currently on GMT (UTC+00:00).
no clock change scheduled — this zone is fixed at UTC+00:00
GMT is UTC+0 and never shifts. The UK observes GMT in winter only — in summer it is on BST (UTC+1), so "GMT" on a British invite dated in July usually means BST.
Bangladesh Standard Time
Asia/Dhaka is on UTC+06:00 (UTC+06:00).
no clock change scheduled — fixed at UTC+06:00
Bangladesh Standard Time is UTC+6. It shares the abbreviation BST with British Summer Time, which is UTC+1 — five hours apart.
Best time to call green = 09:00–18:00 on both sides
3 overlapping working hours. The longest run is 15:00–18:00 BST, which is 09:00–12:00 GMT.
BST to GMT, hour by hour 13 August 2026 · every row is a permalink
| BST | GMT | 12-hour | Day | Permalink |
|---|---|---|---|---|
| 00:00 | 18:00 GMT | 6:00 PM | previous day | 00:00 → |
| 01:00 | 19:00 GMT | 7:00 PM | previous day | 01:00 → |
| 02:00 | 20:00 GMT | 8:00 PM | previous day | 02:00 → |
| 03:00 | 21:00 GMT | 9:00 PM | previous day | 03:00 → |
| 04:00 | 22:00 GMT | 10:00 PM | previous day | 04:00 → |
| 05:00 | 23:00 GMT | 11:00 PM | previous day | 05:00 → |
| 06:00 | 00:00 GMT | 12:00 AM | same day | 06:00 → |
| 07:00 | 01:00 GMT | 1:00 AM | same day | 07:00 → |
| 08:00 | 02:00 GMT | 2:00 AM | same day | 08:00 → |
| 09:00 | 03:00 GMT | 3:00 AM | same day | 09:00 → |
| 10:00 | 04:00 GMT | 4:00 AM | same day | 10:00 → |
| 11:00 | 05:00 GMT | 5:00 AM | same day | 11:00 → |
| 12:00 | 06:00 GMT | 6:00 AM | same day | 12:00 → |
| 13:00 | 07:00 GMT | 7:00 AM | same day | 13:00 → |
| 14:00 | 08:00 GMT | 8:00 AM | same day | 14:00 → |
| 15:00 | 09:00 GMT | 9:00 AM | same day | 15:00 → |
| 16:00 | 10:00 GMT | 10:00 AM | same day | 16:00 → |
| 17:00 | 11:00 GMT | 11:00 AM | same day | 17:00 → |
| 18:00 | 12:00 GMT | 12:00 PM | same day | 18:00 → |
| 19:00 | 13:00 GMT | 1:00 PM | same day | 19:00 → |
| 20:00 | 14:00 GMT | 2:00 PM | same day | 20:00 → |
| 21:00 | 15:00 GMT | 3:00 PM | same day | 21:00 → |
| 22:00 | 16:00 GMT | 4:00 PM | same day | 22:00 → |
| 23:00 | 17:00 GMT | 5:00 PM | same day | 23:00 → |