JST to ART converter

Japan Time (Tokyo, Osaka) to Argentina Time (Buenos Aires).

JST9:07 AMSat 31 Oct 2026

→

ART9:07 PMFri 30 Oct 2026

ART is 12 h behind JST.

Pick a time in JST

⇄ ART to JST

9:00 AM JST = 9:00 PM ART previous day

Best time to meet

No hour falls inside 9 AM to 5 PM in both places, so one side always meets outside office hours.

JST to ART time table

For 31 Oct 2026. Green rows: both sides between 9 AM and 5 PM.

JST	ART
12:00 AM JST	12:00 PM ART previous day
1:00 AM JST	1:00 PM ART previous day
2:00 AM JST	2:00 PM ART previous day
3:00 AM JST	3:00 PM ART previous day
4:00 AM JST	4:00 PM ART previous day
5:00 AM JST	5:00 PM ART previous day
6:00 AM JST	6:00 PM ART previous day
7:00 AM JST	7:00 PM ART previous day
8:00 AM JST	8:00 PM ART previous day
9:00 AM JST	9:00 PM ART previous day
10:00 AM JST	10:00 PM ART previous day
11:00 AM JST	11:00 PM ART previous day
12:00 PM JST	12:00 AM ART
1:00 PM JST	1:00 AM ART
2:00 PM JST	2:00 AM ART
3:00 PM JST	3:00 AM ART
4:00 PM JST	4:00 AM ART
5:00 PM JST	5:00 AM ART
6:00 PM JST	6:00 AM ART
7:00 PM JST	7:00 AM ART
8:00 PM JST	8:00 AM ART
9:00 PM JST	9:00 AM ART
10:00 PM JST	10:00 AM ART
11:00 PM JST	11:00 AM ART

Quick answers

9:00 AM JST = 9:00 PM ART (previous day)
12:00 PM JST = 12:00 AM ART
3:00 PM JST = 3:00 AM ART
5:00 PM JST = 5:00 AM ART
9:00 AM ART = 9:00 PM JST
12:00 PM ART = 12:00 AM JST (next day)
5:00 PM ART = 5:00 AM JST (next day)

Does the gap change during the year?

No. ART is 12 h behind JST all year.

JST does not change its clocks. ART does not change its clocks.

About JST and ART

JST here means Japan Time, the clock in Tokyo, Osaka. Right now it is UTC+9. It has no daylight saving.

ART here means Argentina Time, the clock in Buenos Aires. Right now it is UTC−3. It has no daylight saving.

Every city on your wrist

Meanwhile puts these times in your Mac menu bar, on your iPhone home screen and on your Apple Watch. Type “3pm Tokyo” and every city answers. Free for 3 cities. Unlock every city on every device once for $4.99, shared with your family. No subscription.

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