British Summer Time (bst) is used in United Kingdom. The IANA timezone identifier is Europe/London.

Brasilia Time (brt) is used in Brazil. The IANA timezone identifier is America/Sao_Paulo.

BST to BRT Time Converter

British Summer Time → Brasilia Time

BST = UTC+1BRT = UTC-3

⚠️ BST is ambiguous — on this page it means British Summer Time. It also refers to:

Bangladesh Standard Time (Dhaka) → BRT ↗

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

BRT (São Paulo)

Brazil · -4h

05:00

New York

USA · -5h

04:00

Tokyo

Japan · +8h

17:00

Dubai

United Arab Emirates · +3h

12:00

Sydney

Australia · +9h

18:00

BST (London) vs BRT (São Paulo) — time difference

BST (London) is 4 hours ahead of BRT (São Paulo). When it's noon in BST (London), it's 08:00 in BRT (São Paulo).

BST (London) runs on Europe/London; BRT (São Paulo) runs on America/Sao_Paulo. Together they are 4 hours apart.

Shared working hours

Both BST (London) and BRT (São Paulo) are simultaneously in business hours for 4 hours per day (assuming standard 9:00–17:00 working hours).

00:0006:0012:0018:0024:00

BST (London)

BRT (São Paulo)

Overlap (4h)

Best call times between these locations

There is a 4-hour daily window where both locations are in business hours. The 3 best slots are listed below.

13:00 London / 09:00 São Paulo✓ Both working

14:00 London / 10:00 São Paulo✓ Both working

15:00 London / 11:00 São Paulo✓ Both working

Working hours defined as 09:00–17:00 local time for each location.

Public holidays this year

⚡ Upcoming holidays in both locations, confirm with your contact before booking.

BST (London)7 holidays

Jun 15World Cup Bank HolidaySOON

Jul 13Battle of the Boyne

Aug 3Summer Bank Holiday

Aug 31Summer Bank Holiday

Nov 30Saint Andrew's Day

BRT (São Paulo)7 holidays

Jul 9Constitutionalist Revolution of 1932

Sep 7Independence Day

Oct 12Our Lady of Aparecida

Nov 2All Souls' Day

Nov 15Republic Proclamation Day

BST (London) and BRT (São Paulo) — practical scheduling

BST (London) (United Kingdom) and BRT (São Paulo) (Brazil) are 4 hours apart. With a 4-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.

💡 Practical scheduling guidelines

✅

If you are in BST (London), aim for 13:00–14:00, which corresponds to 09:00–10:00 in BRT (São Paulo) — both teams are within working hours.

✅

If you are in BST (London), aim for 14:00–15:00, which corresponds to 10:00–11:00 in BRT (São Paulo) — both teams are within working hours.

✅

If you are in BST (London), aim for 15:00–16:00, which corresponds to 11:00–12:00 in BRT (São Paulo) — both teams are within working hours.

Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.

Add to your browser — Free →

Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am BST (London)".

BST (London) ↔ BRT (São Paulo)

4h of business hours overlap daily (09:00–17:00)

BST (London)

BRT (São Paulo)

00:00

20:00-1d

01:00

21:00-1d

02:00

22:00-1d

03:00

23:00-1d

04:00

00:00

05:00

01:00

06:00

02:00

07:00

03:00

08:00

04:00

09:00Working

05:00off

10:00Working

06:00off

11:00Working

07:00off

12:00Working

08:00off

13:00Working

09:00Working

14:00Working

10:00Working

15:00Working

11:00Working

16:00Working

12:00Working

17:00

13:00Working

18:00

14:00Working

19:00

15:00Working

20:00

16:00Working

21:00

17:00

22:00

18:00

23:00

19:00

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between bst and brt?

British Summer Time (bst) is UTC+1 and Brasilia Time (brt) is UTC-3. The difference between them is 4 hours.

Where is bst used?

British Summer Time (bst) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London. Note: bst is ambiguous and may refer to other timezones.

Where is brt used?

Brasilia Time (brt) is used in Brazil and surrounding regions. The IANA timezone identifier is America/Sao_Paulo.

How do I convert bst to brt?

Use the interactive converter above. Drag the time slider to any bst time and the brt equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular BST conversions

BST → New York BST → Tokyo BST → Dubai BST → Sydney BST → Paris BST → Berlin BST → Singapore BST → Los Angeles BST → Toronto BST → Mumbai

Popular BRT conversions

London → BRT New York → BRT Tokyo → BRT Dubai → BRT Sydney → BRT Paris → BRT Berlin → BRT Singapore → BRT Los Angeles → BRT Toronto → BRT