Rio de Janeiro to Karatsu time converter

Karatsu is 12 hours ahead of Rio de Janeiro. When it is 9:00 AM in Rio de Janeiro, it is 9:00 PM in Karatsu.

Rio de Janeiro BRT

Wednesday, October 21, 2026

Karatsu JST

Wednesday, October 21, 2026

Rio de Janeiro
Brazil
Wed, Oct 21
BRTUTC-3
Karatsu
Japan
Wed, Oct 21
JSTUTC+9+12h
Finding your time zone…
Shared working hours (9:00–18:00)

Rio de Janeiro to Karatsu conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in Rio de Janeiro (9:00 PM – 10:00 PM in Karatsu): working hours on one side, early or late on the other.

Daylight saving time and the difference

The difference stays 12 hours all year.

Distance

Rio de Janeiro and Karatsu are 18,666 km (11,599 miles) apart in a straight line.

More conversions

Karatsu 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 KaratsuLondon to KaratsuLos Angeles to KaratsuChicago to KaratsuToronto to KaratsuSão Paulo to KaratsuParis to KaratsuBerlin to KaratsuMoscow to KaratsuDubai to KaratsuNew Delhi to KaratsuBangkok to Karatsu

Questions and answers

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

Karatsu is 12 hours ahead of Rio de Janeiro.

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

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

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

Working hours don't overlap fully. The closest fit is 9:00 AM – 10:00 AM in Rio de Janeiro (9:00 PM – 10:00 PM in Karatsu): working hours on one side, early or late on the other.

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

No. The difference stays 12 hours all year.