ART to JST time converter

JST is 12 hours ahead of ART. When it is 9:00 AM in ART, it is 9:00 PM in JST.

ART UTC-3

Friday, October 16, 2026

JST UTC+9

Saturday, October 17, 2026

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

ART to JST conversion table

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

ARTJST
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 ART (9:00 PM – 10:00 PM in JST): 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

JST to ARTART to UTCART to GMTART to ESTART to CSTART to MSTART to PSTART to CETART to MSKART to GSTART to PKTART to ISTART to SGT
UTC to JSTGMT to JSTEST to JSTCST to JSTMST to JSTPST to JSTCET to JSTMSK to JSTGST to JSTPKT to JSTIST to JSTSGT to JST

Questions and answers

What is the time difference between ART and JST?

JST is 12 hours ahead of ART.

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

When it is 9:00 AM in ART, it is 9:00 PM in JST.

When is the best time to call JST from ART?

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

Does the time difference between ART and JST change?

No. The difference stays 12 hours all year.