Constanţa to Rio de Janeiro time converter

Rio de Janeiro is 6 hours behind Constanţa. When it is 9:00 AM in Constanţa, it is 3:00 AM in Rio de Janeiro.

Constanţa EEST

Tuesday, October 20, 2026

Rio de Janeiro BRT

Monday, October 19, 2026

Constanţa
Romania
Tue, Oct 20
EESTUTC+3
Rio de Janeiro
Brazil
Mon, Oct 19
BRTUTC-3-6h
Finding your time zone…
Shared working hours (9:00–18:00)

Constanţa to Rio de Janeiro conversion table

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

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

Best time to call or meet

Both sides are at work from 3:00 PM – 6:00 PM in Constanţa (9:00 AM – 12:00 PM in Rio de Janeiro).

Daylight saving time and the difference

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

  • Oct 20, 2026 – Oct 25, 2026: -6h
  • Oct 25, 2026 – Mar 28, 2027: -5h
  • Mar 28, 2027 – Oct 20, 2027: -6h

Distance

Constanţa and Rio de Janeiro are 10,423 km (6,477 miles) apart in a straight line.

More conversions

Rio de Janeiro to ConstanţaConstanţa to New YorkConstanţa to LondonConstanţa to Los AngelesConstanţa to ChicagoConstanţa to TorontoConstanţa to São PauloConstanţa to ParisConstanţa to BerlinConstanţa to MoscowConstanţa to DubaiConstanţa to New DelhiConstanţa to Bangkok
New York to Rio de JaneiroLondon to Rio de JaneiroLos Angeles to Rio de JaneiroChicago to Rio de JaneiroToronto to Rio de JaneiroSão Paulo to Rio de JaneiroParis to Rio de JaneiroBerlin to Rio de JaneiroMoscow to Rio de JaneiroDubai to Rio de JaneiroNew Delhi to Rio de JaneiroBangkok to Rio de Janeiro

Questions and answers

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

Rio de Janeiro is 6 hours behind Constanţa.

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

When it is 9:00 AM in Constanţa, it is 3:00 AM in Rio de Janeiro.

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

Both sides are at work from 3:00 PM – 6:00 PM in Constanţa (9:00 AM – 12:00 PM in Rio de Janeiro).

Does the time difference between Constanţa 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.