Time Difference Between London and Rio de Janeiro

The time difference between London and Rio de Janeiro is 4 hours. When it is 12:00 noon in London, it is 08:00 in Rio de Janeiro. London uses the Europe/London time zone (UTC+1), while Rio de Janeiro uses America/Sao_Paulo (UTC-3).

Rio de Janeiro is 4 hours behind London — 4 hours
London, United Kingdom
00:41:30
Monday, May 11, 2026
UTC+1 · BST (DST)
↔
Rio de Janeiro, Brazil
20:41:30
Sunday, May 10, 2026
UTC-3 · -03

Time Zone Details: London vs Rio de Janeiro

Detail London Rio de Janeiro
Time Zone IDEurope/LondonAmerica/Sao_Paulo
UTC OffsetUTC+1UTC-3
AbbreviationBST-03
DST ActiveYes — currently observingNo
CountryUnited KingdomBrazil
RegionEuropeSouth America

Best Time to Schedule a Call

There are 4 overlapping business hours between London and Rio de Janeiro (assuming 9:00–17:00 in each city). The ideal window for calls and meetings is:

13:00–17:00 in London  =  09:00–13:00 in Rio de Janeiro

Hour-by-Hour Time Conversion

Use this table to quickly convert any hour from London time to Rio de Janeiro time. Rows highlighted in green indicate overlapping business hours in both cities.

London Rio de Janeiro
00:00 20:00 (-1 day) Night
01:00 21:00 (-1 day) Night
02:00 22:00 (-1 day) Night
03:00 23:00 (-1 day) Night
04:00 00:00 Night
05:00 01:00 Night
06:00 02:00
07:00 03:00
08:00 04:00
09:00 05:00
10:00 06:00
11:00 07:00
12:00 08:00
13:00 09:00 Overlap
14:00 10:00 Overlap
15:00 11:00 Overlap
16:00 12:00 Overlap
17:00 13:00
18:00 14:00
19:00 15:00
20:00 16:00
21:00 17:00
22:00 18:00 Night
23:00 19:00 Night

Daylight Saving Time (DST) Impact

London is currently observing daylight saving time, while Rio de Janeiro is on standard time. When London switches back to standard time, the difference between these two cities will shift by 1 hour.

Practical Tips for London–Rio de Janeiro Scheduling

Compare London and Rio de Janeiro with Other Cities

From London

London vs New York London vs Tokyo London vs Sydney London vs Dubai London vs Los Angeles London vs Paris London vs Singapore London vs Berlin London vs Toronto London vs Hong Kong London vs Mumbai London vs Seoul London vs Chicago London vs San Francisco London vs Moscow London vs Bangkok London vs Shanghai London vs Sao Paulo London vs Mexico City London vs Cairo London vs Johannesburg

From Rio de Janeiro

Rio de Janeiro vs New York Rio de Janeiro vs Tokyo Rio de Janeiro vs Sydney Rio de Janeiro vs Dubai Rio de Janeiro vs Los Angeles Rio de Janeiro vs Paris Rio de Janeiro vs Singapore Rio de Janeiro vs Berlin Rio de Janeiro vs Toronto Rio de Janeiro vs Hong Kong Rio de Janeiro vs Mumbai Rio de Janeiro vs Seoul Rio de Janeiro vs Chicago Rio de Janeiro vs San Francisco Rio de Janeiro vs Moscow Rio de Janeiro vs Bangkok Rio de Janeiro vs Shanghai Rio de Janeiro vs Sao Paulo Rio de Janeiro vs Mexico City Rio de Janeiro vs Cairo Rio de Janeiro vs Johannesburg

Frequently Asked Questions

What is the time difference between London and Rio de Janeiro?

The time difference is 4 hours. Rio de Janeiro is 4 hours behind London.

Does the time difference change during the year?

Yes. One of these cities observes DST while the other does not, so the difference shifts by 1 hour when DST begins or ends.

When is the best time to call from London to Rio de Janeiro?

The best window is between 13:00 and 17:00 London time, which corresponds to 09:00–13:00 in Rio de Janeiro. Both sides fall within normal business hours.

How do I convert London time to Rio de Janeiro time?

Subtract 4 hours from London time to get Rio de Janeiro time. Use the hour-by-hour table above for a quick reference.

Related Pages

For sunrise and sunset data, visit TheSunsetTimes.com. For detailed DST schedules, see DaylightSavingTime.info.