Rio de Janeiro to Constantine time converter

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

Rio de Janeiro BRT

Monday, October 19, 2026

Constantine CET

Monday, October 19, 2026

Rio de Janeiro
Brazil
Mon, Oct 19
BRTUTC-3
Constantine
Algeria
Mon, Oct 19
CETUTC+1+4h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Constantine conversion table

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

Rio de JaneiroConstantine
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 Constantine).

Daylight saving time and the difference

The difference stays 4 hours all year.

Distance

Rio de Janeiro and Constantine are 8,411 km (5,226 miles) apart in a straight line.

More conversions

Constantine 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 ConstantineLondon to ConstantineLos Angeles to ConstantineChicago to ConstantineToronto to ConstantineSão Paulo to ConstantineParis to ConstantineBerlin to ConstantineMoscow to ConstantineDubai to ConstantineNew Delhi to ConstantineBangkok to Constantine

Questions and answers

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

Constantine is 4 hours ahead of Rio de Janeiro.

What time is it in Constantine 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 Constantine.

When is the best time to call Constantine 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 Constantine).

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

No. The difference stays 4 hours all year.