JST to ACST Converter

ACST is 0h 30m ahead of JST. When it's 12:00 PM JST, it's 12:30 PM ACST.

From

JST · UTC+9

1:09:54PM

Japan Standard Time

e.g. Tokyo

To

ACST · UTC+9:30

1:39:54PM

Australian Central Standard Time

e.g. Adelaide, Darwin

Open in World ClockACST → JST
9:00 AM JST=9:30 AM ACST
12:00 PM JST=12:30 PM ACST
5:00 PM JST=5:30 PM ACST

Hourly conversion (JST → ACST)

JSTACST
12:00 AM12:30 AM
1:00 AM1:30 AM
2:00 AM2:30 AM
3:00 AM3:30 AM
4:00 AM4:30 AM
5:00 AM5:30 AM
6:00 AM6:30 AM
7:00 AM7:30 AM
8:00 AM8:30 AM
9:00 AM9:30 AM
10:00 AM10:30 AM
11:00 AM11:30 AM
12:00 PM12:30 PM
1:00 PM1:30 PM
2:00 PM2:30 PM
3:00 PM3:30 PM
4:00 PM4:30 PM
5:00 PM5:30 PM
6:00 PM6:30 PM
7:00 PM7:30 PM
8:00 PM8:30 PM
9:00 PM9:30 PM
10:00 PM10:30 PM
11:00 PM11:30 PM

Shaded rows are within standard working hours (8am–6pm) on both sides.

Japan does not observe daylight saving time, so JST (UTC+9) applies year-round.

More JST conversions

Frequently asked questions

What is the time difference between JST and ACST?
ACST is 0h 30m ahead of JST. JST is UTC+9 and ACST is UTC+9:30.
What is 12:00 PM JST in ACST?
12:00 PM JST is 12:30 PM ACST.
Does JST change for daylight saving time?
Japan does not observe daylight saving time, so JST (UTC+9) applies year-round.