JST to ART time converter

ART is 12 hours behind JST. When it is 9:00 AM in JST, it is 9:00 PM (Fri, Oct 16) in ART.

JST UTC+9

Saturday, October 17, 2026

ART UTC-3

Friday, October 16, 2026

JST
Japan Standard Time
Sat, Oct 17
UTC+9
ART
Argentina Time
Fri, Oct 16
UTC-3-12h
Finding your time zone…
Shared working hours (9:00–18:00)

JST to ART conversion table

Every hour of today in JST and the matching time in ART. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

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

Daylight saving time and the difference

The difference stays 12 hours all year.

More conversions

ART to JSTJST to UTCJST to GMTJST to ESTJST to CSTJST to MSTJST to PSTJST to CETJST to MSKJST to GSTJST to PKTJST to ISTJST to SGT
UTC to ARTGMT to ARTEST to ARTCST to ARTMST to ARTPST to ARTCET to ARTMSK to ARTGST to ARTPKT to ARTIST to ARTSGT to ART

Questions and answers

What is the time difference between JST and ART?

ART is 12 hours behind JST.

What time is it in ART when it is 9 AM in JST?

When it is 9:00 AM in JST, it is 9:00 PM (Fri, Oct 16) in ART.

When is the best time to call ART from JST?

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

Does the time difference between JST and ART change?

No. The difference stays 12 hours all year.