Australian Central Time to Japan Standard Time
Convert times between Australian Central Time (ACST, UTC+9:30) and Japan Standard Time (JST, UTC+9:00). Japan Standard Time is 0.5 hours behind Australian Central Time in standard time. During daylight saving time this difference changes to 1.5 hours.
UTC+9:30 / +10:30→UTC+9:00
Live timezone converterUTC Offset Reference
| Timezone | Abbreviation | Standard offset | DST offset | Country |
|---|---|---|---|---|
| Australian Central Time | ACST / ACDT | UTC+9:30 | UTC+10:30 | Australia |
| Japan Standard Time | JST | UTC+9:00 | — | Japan |
* DST offset applies during summer months. Exact transition dates vary by year.
Standard Time Conversion (ACST → JST)
| Australian Central Time | Japan Standard Time |
|---|---|
| 12:00 AM ACST | 11.5:00 PM (prev day) JST |
| 6:00 AM ACST | 5.5:00 AM JST |
| 9:00 AM ACST | 8.5:00 AM JST |
| 12:00 PM ACST | 11.5:00 AM JST |
| 3:00 PM ACST | 2.5:00 PM JST |
| 6:00 PM ACST | 5.5:00 PM JST |
| 9:00 PM ACST | 8.5:00 PM JST |
Summer (DST) Conversion (ACDT → JST)
| Australian Central Time (summer) | Japan Standard Time (summer) |
|---|---|
| 12:00 AM ACDT | 10.5:00 PM (prev day) JST |
| 6:00 AM ACDT | 4.5:00 AM JST |
| 9:00 AM ACDT | 7.5:00 AM JST |
| 12:00 PM ACDT | 10.5:00 AM JST |
| 3:00 PM ACDT | 1.5:00 PM JST |
| 6:00 PM ACDT | 4.5:00 PM JST |
| 9:00 PM ACDT | 7.5:00 PM JST |
Daylight Saving Time (DST) Notes
- Australian Central Time observes DST. Clocks advance 1 hour to ACDT (UTC+10:30) roughly from month 10 to 4.
- The offset difference shifts between 0.5h (standard) and 1.5h (DST season). Always verify the current offset using the live converter below.
Frequently Asked Questions
How do I convert ACST to JST?
Add (-0.5) hours to the ACST time to get JST. For example, 9:00 AM ACST = 8.5:00 AM JST.
What is the current UTC offset for Australian Central Time?
Australian Central Time is UTC+9:30 during standard time (ACST) and UTC+10:30 during summer daylight saving time (ACDT).
Is Japan Standard Time ahead or behind Australian Central Time?
Japan Standard Time is 0.5 hours behind Australian Central Time in standard time.
When is a good time to schedule a meeting between ACST and JST?
Due to the 0.5-hour difference, business-hours overlap may be limited. Use the live timezone converter to find a mutually convenient time.
Related Timezone Conversions
Australian Central Time → China Standard TimeACST / CSTAustralian Central Time → Hong Kong TimeACST / HKTAustralian Central Time → Korea Standard TimeACST / KSTAustralian Central Time → Australian Eastern TimeACST / AESTAustralian Central Time → Australian Western TimeACST / AWSTAustralian Central Time → New Zealand TimeACST / NZSTAustralian Central Time → US Eastern TimeACST / ESTAustralian Central Time → Greenwich Mean TimeACST / GMT
Need the exact current time?
Use the live ToolsHub timezone converter to see current times, DST status, and schedule across time zones.