Rio de Janeiro Time to BST Converter
GMT is 3 hours ahead of BRT. 9:00 AM BRT = 12:00 PM GMT.
GMT is 3 hours ahead of BRT at the moment. To convert Rio de Janeiro Time to BST, add 3 hours to the Rio de Janeiro Time time: 9:00 AM BRT = 12:00 PM GMT.
Rio de Janeiro Time (Rio de Janeiro time) is used in Rio de Janeiro, Brazil. 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.
Rio de Janeiro Time to BST time conversion table
Rio de Janeiro Time to BST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Rio de Janeiro Time | BST | Day |
|---|---|---|
| 12:00 AM BRT | 3:00 AM GMT | night |
| 1:00 AM BRT | 4:00 AM GMT | night |
| 2:00 AM BRT | 5:00 AM GMT | night |
| 3:00 AM BRT | 6:00 AM GMT | — |
| 4:00 AM BRT | 7:00 AM GMT | — |
| 5:00 AM BRT | 8:00 AM GMT | — |
| 6:00 AM BRT | 9:00 AM GMT | — |
| 7:00 AM BRT | 10:00 AM GMT | — |
| 8:00 AM BRT | 11:00 AM GMT | — |
| 9:00 AM BRT | 12:00 PM GMT | work hours |
| 10:00 AM BRT | 1:00 PM GMT | work hours |
| 11:00 AM BRT | 2:00 PM GMT | work hours |
| 12:00 PM BRT | 3:00 PM GMT | work hours |
| 1:00 PM BRT | 4:00 PM GMT | work hours |
| 2:00 PM BRT | 5:00 PM GMT | — |
| 3:00 PM BRT | 6:00 PM GMT | — |
| 4:00 PM BRT | 7:00 PM GMT | — |
| 5:00 PM BRT | 8:00 PM GMT | — |
| 6:00 PM BRT | 9:00 PM GMT | — |
| 7:00 PM BRT | 10:00 PM GMT | night |
| 8:00 PM BRT | 11:00 PM GMT | night |
| 9:00 PM BRT | 12:00 AM GMT | next day |
| 10:00 PM BRT | 1:00 AM GMT | next day |
| 11:00 PM BRT | 2:00 AM GMT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Rio de Janeiro Time to BST
Add 3 hours to the Rio de Janeiro Time time to get BST.
Example: 9:00 AM BRT = 12:00 PM GMT.
Across midnight: 10:00 PM BRT = 1:00 AM GMT (next day). The date changes, so always check the day as well as the hour.
Time difference between Rio de Janeiro Time and BST
The time difference between Rio de Janeiro 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:
- 31 Dec 2025 – 27 Mar 2026: BST is 3 hours ahead of Rio de Janeiro Time.
- 28 Mar 2026 – 23 Oct 2026: BST is 4 hours ahead of Rio de Janeiro Time.
- 24 Oct 2026 – 30 Dec 2026: BST is 3 hours ahead of Rio de Janeiro Time.
Rio de Janeiro Time and BST during daylight saving time
- Rio de Janeiro Time does not observe daylight saving time; it stays on UTC−3 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 Rio de Janeiro Time and BST
Rio de Janeiro Time and BST share 5 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 2:00 PM BRT lands between 12:00 PM and 5:00 PM GMT, inside working hours for both.
Rio de Janeiro Time to BST FAQ
What is the time difference between Rio de Janeiro Time and BST?
Right now GMT is 3 hours ahead of BRT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Rio de Janeiro Time in BST?
9:00 AM BRT is 12:00 PM GMT.
What is 12 PM (noon) Rio de Janeiro Time in BST?
12:00 PM BRT is 3:00 PM GMT.
Is BST ahead of or behind Rio de Janeiro Time?
GMT is 3 hours ahead of BRT, so it is later in BST than in Rio de Janeiro Time.
Does Rio de Janeiro Time change for daylight saving time?
No. Rio de Janeiro 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 Rio de Janeiro Time and BST?
Rio de Janeiro Time and BST share 5 hours of the 9 AM–5 PM working day. Any time between 9:00 AM and 2:00 PM BRT lands between 12:00 PM and 5:00 PM GMT, inside working hours for both.
Related conversions
Convert BST to Rio de Janeiro Time
Convert Rio de Janeiro Time to other time zones
Convert other time zones to BST
Updated 7 November 2026. Time zone data: IANA tz database.