India Standard Time to Australian Central Time
Convert times between India Standard Time (IST, UTC+5:30) and Australian Central Time (ACST, UTC+9:30). Australian Central Time is 4 hours ahead of India Standard Time in standard time. During daylight saving time this difference changes to 5 hours.
UTC+5:30→UTC+9:30 / +10:30
Live timezone converterUTC Offset Reference
| Timezone | Abbreviation | Standard offset | DST offset | Country |
|---|---|---|---|---|
| India Standard Time | IST | UTC+5:30 | — | India |
| Australian Central Time | ACST / ACDT | UTC+9:30 | UTC+10:30 | Australia |
* DST offset applies during summer months. Exact transition dates vary by year.
Standard Time Conversion (IST → ACST)
| India Standard Time | Australian Central Time |
|---|---|
| 12:00 AM IST | 4:00 AM ACST |
| 6:00 AM IST | 10:00 AM ACST |
| 9:00 AM IST | 1:00 PM ACST |
| 12:00 PM IST | 4:00 PM ACST |
| 3:00 PM IST | 7:00 PM ACST |
| 6:00 PM IST | 10:00 PM ACST |
| 9:00 PM IST | 1:00 AM (next day) ACST |
Summer (DST) Conversion (IST → ACDT)
| India Standard Time (summer) | Australian Central Time (summer) |
|---|---|
| 12:00 AM IST | 5:00 AM ACDT |
| 6:00 AM IST | 11:00 AM ACDT |
| 9:00 AM IST | 2:00 PM ACDT |
| 12:00 PM IST | 5:00 PM ACDT |
| 3:00 PM IST | 8:00 PM ACDT |
| 6:00 PM IST | 11:00 PM ACDT |
| 9:00 PM IST | 2:00 AM (next day) ACDT |
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 4h (standard) and 5h (DST season). Always verify the current offset using the live converter below.
Frequently Asked Questions
How do I convert IST to ACST?
Add 4 hours to the IST time to get ACST. For example, 9:00 AM IST = 1:00 PM ACST.
What is the current UTC offset for India Standard Time?
India Standard Time is always UTC+5:30 (IST) — it does not observe DST.
Is Australian Central Time ahead or behind India Standard Time?
Australian Central Time is 4 hours ahead of India Standard Time in standard time.
When is a good time to schedule a meeting between IST and ACST?
A good overlap window is around 9:00 AM IST / 1:00 PM ACST, which falls within business hours for both timezones.
Related Timezone Conversions
India Standard Time → Pakistan Standard TimeIST / PKTIndia Standard Time → Bangladesh Standard TimeIST / BSTIndia Standard Time → Australian Eastern TimeIST / AESTIndia Standard Time → Australian Western TimeIST / AWSTIndia Standard Time → New Zealand TimeIST / NZSTIndia Standard Time → US Eastern TimeIST / ESTIndia Standard Time → Greenwich Mean TimeIST / GMTIndia Standard Time → China Standard TimeIST / CST
Need the exact current time?
Use the live ToolsHub timezone converter to see current times, DST status, and schedule across time zones.