Colwyn Bay to Rio de Janeiro time converter

Rio de Janeiro is 4 hours behind Colwyn Bay. When it is 9:00 AM in Colwyn Bay, it is 5:00 AM in Rio de Janeiro.

Colwyn Bay BST

Thursday, October 22, 2026

Rio de Janeiro BRT

Wednesday, October 21, 2026

United Kingdom
Thu, Oct 22
BSTUTC+1
Wed, Oct 21
BRTUTC-3-4h
Finding your time zone…

12:49 AM in Colwyn Bay, Thursday, October 22, 2026

Shared working hours (9:00–18:00)

Colwyn Bay to Rio de Janeiro conversion table

Every hour of today in Colwyn Bay and the matching time in Rio de Janeiro. Light rows are typical working hours (9:00–18:00).

Colwyn BayRio de Janeiro
12:00 AM8:00 PM−1 day
1:00 AM9:00 PM−1 day
2:00 AM10:00 PM−1 day
3:00 AM11:00 PM−1 day
4:00 AM12:00 AM
5:00 AM1:00 AM
6:00 AM2:00 AM
7:00 AM3:00 AM
8:00 AM4:00 AM
9:00 AM5:00 AM
10:00 AM6:00 AM
11:00 AM7:00 AM
12:00 PM8:00 AM
1:00 PM9:00 AM
2:00 PM10:00 AM
3:00 PM11:00 AM
4:00 PM12:00 PM
5:00 PM1:00 PM
6:00 PM2:00 PM
7:00 PM3:00 PM
8:00 PM4:00 PM
9:00 PM5:00 PM
10:00 PM6:00 PM
11:00 PM7:00 PM

Best time to call or meet

Both sides are at work from 1:00 PM – 6:00 PM in Colwyn Bay (9:00 AM – 2:00 PM in Rio de Janeiro).

Daylight saving time and the difference

The difference changes during the year because Colwyn Bay and Rio de Janeiro switch clocks on different dates:

  • Oct 22, 2026 – Oct 25, 2026: -4h
  • Oct 25, 2026 – Mar 28, 2027: -3h
  • Mar 28, 2027 – Oct 22, 2027: -4h

Distance

Colwyn Bay and Rio de Janeiro are 9,286 km (5,770 miles) apart in a straight line.

More conversions

Questions and answers

What is the time difference between Colwyn Bay and Rio de Janeiro?

Rio de Janeiro is 4 hours behind Colwyn Bay.

What time is it in Rio de Janeiro when it is 9 AM in Colwyn Bay?

When it is 9:00 AM in Colwyn Bay, it is 5:00 AM in Rio de Janeiro.

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

Both sides are at work from 1:00 PM – 6:00 PM in Colwyn Bay (9:00 AM – 2:00 PM in Rio de Janeiro).

Does the time difference between Colwyn Bay and Rio de Janeiro change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.