ACST to IST Converter – Australian Central Standard Time to Indian Standard Time
Australian Central Standard Time · Adelaide, Darwin
Also convert in the other direction: IST to ACST →
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ACST to IST Conversion Table
Common ACST times converted to Indian Standard Time (IST)
| Australia — ACST | India — IST | Day |
|---|---|---|
| 12:00 AM (midnight) ACST | 8:00 PM IST | prev day |
| 6:00 AM ACST | 2:00 AM IST | same day |
| 9:00 AM ACST | 5:00 AM IST | same day |
| 12:00 PM ACST | 8:00 AM IST | same day |
| 3:00 PM ACST | 11:00 AM IST | same day |
| 6:00 PM ACST | 2:00 PM IST | same day |
| 9:00 PM ACST | 5:00 PM IST | same day |
| 11:30 PM ACST | 7:30 PM IST | same day |
India Work Hours in ACST — Meeting Planner
When India is working (9 AM – 9 PM IST), what time is it in Australia?
| India — IST | Australia — ACST | Day |
|---|---|---|
| 9:00 AM IST | 1:00 PM ACST | same day |
| 12:00 PM IST | 4:00 PM ACST | same day |
| 3:00 PM IST | 7:00 PM ACST | same day |
| 6:00 PM IST | 10:00 PM ACST | same day |
| 9:00 PM IST | 1:00 AM ACST | next day |
About Australian Central Standard Time and IST Time Difference
Indian Standard Time (IST) is UTC+5:30. Australian Central Standard Time (ACST) is UTC+09:30. The offset between ACST and IST is IST +4 hrs.
India does not observe Daylight Saving Time — IST stays at UTC+5:30 year-round. If Australia observes DST, the actual offset between ACST and IST will shift by 1 hour during the DST period (typically spring–autumn in the Northern Hemisphere, autumn–spring in the Southern Hemisphere).
Major cities in Australian Central Standard Time
Adelaide, Darwin.
Frequently Asked Questions
What is the time difference between ACST and IST?
IST (Indian Standard Time) is UTC+5:30. Australian Central Standard Time is UTC+09:30. The difference is IST +4 hrs. For example, 12:00 PM ACST = 8:00 AM IST.
Does India observe Daylight Saving Time?
No. India does not observe DST. IST stays at UTC+5:30 all year. The offset between ACST and IST may change if your timezone observes DST — typically shifting by 1 hour in spring and autumn.
How do I convert ACST to IST?
To convert ACST to IST: subtract 4 hours from the ACST time. Use the conversion table above or the live clock for instant DST-aware results.
India–Australia Work Hour Overlap
Find shared business hours, DST impact, and daily overlap charts between India (IST) and Australia.
View India–Australia Overlap →