Time in IST and ACST
The time difference between Indian Standard Time (IST) and Australian Central Standard Time (ACST) is 4 hours. Australian Central Standard Time is 4 hours ahead of Indian Standard Time.
This means 9am IST is 1pm ACST and 5pm IST is 9pm ACST.
Indian Standard Time
- The current local time in IST is 7:04 pm (July 18, 2026)
- IST time zone offset is UTC+05:30
Australian Central Standard Time
- The current local time in ACST is 11:04 pm (July 18, 2026)
- ACST time zone offset is UTC+09:30
How to convert Indian Standard Time to Australian Central Standard Time?
Add 4 hours to Indian Standard Time to get Australian Central Standard Time.
Time in IST
00:00
Time in ACST
00:00
Use the slider above to convert Indian Standard Time to Australian Central Standard Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| IST | ACST |
|---|---|
| 12am | 4am |
| 1am | 5am |
| 2am | 6am |
| 3am | 7am |
| 4am | 8am |
| 5am | 9am |
| 6am | 10am |
| 7am | 11am |
| 8am | 12pm |
| 9am | 1pm |
| 10am | 2pm |
| 11am | 3pm |
| 12pm | 4pm |
| 1pm | 5pm |
| 2pm | 6pm |
| 3pm | 7pm |
| 4pm | 8pm |
| 5pm | 9pm |
| 6pm | 10pm |
| 7pm | 11pm |
| 8pm | 12am |
| 9pm | 1am |
| 10pm | 2am |
| 11pm | 3am |