Rio de Janeiro to Grays time converter

Grays is 4 hours ahead of Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 1:00 PM in Grays.

Rio de Janeiro BRT

Tuesday, October 20, 2026

Grays BST

Wednesday, October 21, 2026

Rio de Janeiro
Brazil
Tue, Oct 20
BRTUTC-3
Grays
United Kingdom
Wed, Oct 21
BSTUTC+1+4h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Grays conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 20, 2026 – Oct 24, 2026: +4h
  • Oct 24, 2026 – Mar 27, 2027: +3h
  • Mar 27, 2027 – Oct 20, 2027: +4h

Distance

Rio de Janeiro and Grays are 9,295 km (5,776 miles) apart in a straight line.

More conversions

Grays to Rio de JaneiroRio de Janeiro to New YorkRio de Janeiro to LondonRio de Janeiro to Los AngelesRio de Janeiro to ChicagoRio de Janeiro to TorontoRio de Janeiro to São PauloRio de Janeiro to ParisRio de Janeiro to BerlinRio de Janeiro to MoscowRio de Janeiro to DubaiRio de Janeiro to New DelhiRio de Janeiro to Bangkok
New York to GraysLondon to GraysLos Angeles to GraysChicago to GraysToronto to GraysSão Paulo to GraysParis to GraysBerlin to GraysMoscow to GraysDubai to GraysNew Delhi to GraysBangkok to Grays

Questions and answers

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

Grays is 4 hours ahead of Rio de Janeiro.

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

When it is 9:00 AM in Rio de Janeiro, it is 1:00 PM in Grays.

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

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

Does the time difference between Rio de Janeiro and Grays change?

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