Rio de Janeiro to Komatsu time converter

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

Rio de Janeiro BRT

Wednesday, October 21, 2026

Komatsu JST

Wednesday, October 21, 2026

Wed, Oct 21
BRTUTC-3
Japan
Wed, Oct 21
JSTUTC+9+12h
Finding your time zone…

9:02 AM in Rio de Janeiro, Wednesday, October 21, 2026

Shared working hours (9:00–18:00)

Rio de Janeiro to Komatsu conversion table

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

Rio de JaneiroKomatsu
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 Komatsu): 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 Komatsu are 18,514 km (11,504 miles) apart in a straight line.

More conversions

Questions and answers

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

Komatsu is 12 hours ahead of Rio de Janeiro.

What time is it in Komatsu 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 Komatsu.

When is the best time to call Komatsu 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 Komatsu): working hours on one side, early or late on the other.

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

No. The difference stays 12 hours all year.