ACST to JST Converter
Adelaide to Japan — 0.5-hour gap (ACST UTC+9:30, JST UTC+9). Resources trade and manufacturing supply chain.
Time Zone Converter
Compare Times
| ACST | JST |
|---|---|
| 8:00 AM ACST | 7:30 AM JST |
| 9:00 AM ACST | 8:30 AM JST |
| 10:00 AM ACST | 9:30 AM JST |
| 11:00 AM ACST | 10:30 AM JST |
| 12:00 PM ACST | 11:30 AM JST |
| 1:00 PM ACST | 12:30 PM JST |
| 2:00 PM ACST | 1:30 PM JST |
| 3:00 PM ACST | 2:30 PM JST |
| 4:00 PM ACST | 3:30 PM JST |
| 5:00 PM ACST | 4:30 PM JST |
| 6:00 PM ACST | 5:30 PM JST |
| 7:00 PM ACST | 6:30 PM JST |
| 8:00 PM ACST | 7:30 PM JST |
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.
JST is 0 hours 30 minutes behind ACST (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: ACST & JST
ACST
09:30–17:00
Central Australia Time
JST
09:00–16:30
Japan Time
Recommended time: 13:30 ACST / 13:00 JST
DST schedule for 2026
Current-year daylight saving start and end dates for the selected zones.
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dates as the eastern states since the 2008/09 DST season — older sources stating SA changes one week later are out of date.
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.
Principal Cities
ACST — Central Australia Time
- AdelaideAustralia
- DarwinAustralia
- Alice SpringsAustralia
- PalmerstonAustralia
JST — Japan Time
- TokyoJapan
- YokohamaJapan
- OsakaJapan
- NagoyaJapan
