JST to ACST Converter
Japan to Adelaide — tight intra-APAC pair. Adelaide-Japan automotive and resources links.
Time Zone Converter
Compare Times
| JST | ACST |
|---|---|
| 8:00 AM JST | 8:30 AM ACST |
| 9:00 AM JST | 9:30 AM ACST |
| 10:00 AM JST | 10:30 AM ACST |
| 11:00 AM JST | 11:30 AM ACST |
| 12:00 PM JST | 12:30 PM ACST |
| 1:00 PM JST | 1:30 PM ACST |
| 2:00 PM JST | 2:30 PM ACST |
| 3:00 PM JST | 3:30 PM ACST |
| 4:00 PM JST | 4:30 PM ACST |
| 5:00 PM JST | 5:30 PM ACST |
| 6:00 PM JST | 6:30 PM ACST |
| 7:00 PM JST | 7:30 PM ACST |
| 8:00 PM JST | 8:30 PM ACST |
Common Time Conversions
EST · New York →
CST · Chicago →
MST · Denver →
PST · Los Angeles →
AKST · Anchorage →
HST · Honolulu →
UTC · Universal →
GMT · London →
IST · New Delhi →
CET · Paris →
How Time Zone Conversion Works
Time zone conversion works by comparing the UTC offset of one location to another. Every city or region is measured relative to Coordinated Universal Time (UTC), which acts as the global reference point for civil time.
ACST is 0 hours 30 minutes ahead of JST (standard time).
Daylight Saving Time: ACST observes DST; JST does not. The offset between them shifts by 1 hour twice a year — in spring and autumn — when ACST changes its clocks.
Best Meeting Times: JST & ACST
JST
09:00–16:30
Japan Time
ACST
09:30–17:00
Central Australia Time
Recommended time: 12:30 JST / 13:00 ACST
DST schedule for 2026
Current-year daylight saving start and end dates for the selected zones.
JST · Japan Time
Standard offset +09:00
Japan Time remains on a constant standard offset for the year.
Japan has not observed daylight saving time since 1951.
ACST · Central Australia Time
Standard offset +09:30
- Starts
- Oct 4, 2026 · 02:00 → 03:00
- first_sunday_of_october
- Ends
- Apr 5, 2026 · 03:00 → 02:00
- first_sunday_of_april
- Daylight time
- ACDT · +10:30
South Australia observes DST (ACDT, UTC+10:30); the Northern Territory remains on ACST year-round. SA has used the same Sunday transition dates as the eastern states since the 2008/09 DST season — older sources stating SA changes one week later are out of date.
Principal Cities
JST — Japan Time
- TokyoJapan
- YokohamaJapan
- OsakaJapan
- NagoyaJapan
ACST — Central Australia Time
- AdelaideAustralia
- DarwinAustralia
- Alice SpringsAustralia
- PalmerstonAustralia
