BST to BRT Converter
BRT is 3 hours behind GMT. 9:00 AM GMT = 6:00 AM BRT.
BRT is 3 hours behind GMT at the moment. To convert BST to BRT, subtract 3 hours from the BST time: 9:00 AM GMT = 6:00 AM BRT.
BST (British Time) is used in United Kingdom from late March to late October. BRT (Brasília Time) is used in Brasília, São Paulo, Rio de Janeiro.
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.
BST to BRT time conversion table
BST to BRT on 6 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| BST | BRT | Day |
|---|---|---|
| 12:00 AM GMT | 9:00 PM BRT | previous day |
| 1:00 AM GMT | 10:00 PM BRT | previous day |
| 2:00 AM GMT | 11:00 PM BRT | previous day |
| 3:00 AM GMT | 12:00 AM BRT | night |
| 4:00 AM GMT | 1:00 AM BRT | night |
| 5:00 AM GMT | 2:00 AM BRT | night |
| 6:00 AM GMT | 3:00 AM BRT | night |
| 7:00 AM GMT | 4:00 AM BRT | night |
| 8:00 AM GMT | 5:00 AM BRT | night |
| 9:00 AM GMT | 6:00 AM BRT | — |
| 10:00 AM GMT | 7:00 AM BRT | — |
| 11:00 AM GMT | 8:00 AM BRT | — |
| 12:00 PM GMT | 9:00 AM BRT | work hours |
| 1:00 PM GMT | 10:00 AM BRT | work hours |
| 2:00 PM GMT | 11:00 AM BRT | work hours |
| 3:00 PM GMT | 12:00 PM BRT | work hours |
| 4:00 PM GMT | 1:00 PM BRT | work hours |
| 5:00 PM GMT | 2:00 PM BRT | — |
| 6:00 PM GMT | 3:00 PM BRT | — |
| 7:00 PM GMT | 4:00 PM BRT | — |
| 8:00 PM GMT | 5:00 PM BRT | — |
| 9:00 PM GMT | 6:00 PM BRT | — |
| 10:00 PM GMT | 7:00 PM BRT | — |
| 11:00 PM GMT | 8:00 PM BRT | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert BST to BRT
Subtract 3 hours from the BST time to get BRT.
Example: 9:00 AM GMT = 6:00 AM BRT.
Across midnight: 1:00 AM GMT = 10:00 PM BRT (previous day). The date changes, so always check the day as well as the hour.
Time difference between BST and BRT
The time difference between BST and BRT 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: BRT is 3 hours behind of BST.
- 29 Mar 2026 – 24 Oct 2026: BRT is 4 hours behind of BST.
- 25 Oct 2026 – 31 Dec 2026: BRT is 3 hours behind of BST.
BST and BRT during daylight saving time
- 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).
- BRT does not observe daylight saving time; it stays on UTC−3 all year.
Best time for a meeting between BST and BRT
BST and BRT share 5 hours of the 9 AM–5 PM working day. Any time between 12:00 PM and 5:00 PM GMT lands between 9:00 AM and 2:00 PM BRT, inside working hours for both.
BST to BRT FAQ
What is the time difference between BST and BRT?
Right now BRT is 3 hours behind GMT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM BST in BRT?
9:00 AM GMT is 6:00 AM BRT.
What is 12 PM (noon) BST in BRT?
12:00 PM GMT is 9:00 AM BRT.
Is BRT ahead of or behind BST?
BRT is 3 hours behind GMT, so it is earlier in BRT than in BST.
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.
Does BRT change for daylight saving time?
No. BRT stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between BST and BRT?
BST and BRT share 5 hours of the 9 AM–5 PM working day. Any time between 12:00 PM and 5:00 PM GMT lands between 9:00 AM and 2:00 PM BRT, inside working hours for both.
Related conversions
Convert BRT to BST
Convert BST to other time zones
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Learn more
Updated 6 November 2026. Time zone data: IANA tz database.