Adelaide Time to IST Converter
IST is 5 hours behind ACDT. 9:00 AM ACDT = 4:00 AM IST.
IST is 5 hours behind ACDT at the moment. To convert Adelaide Time to IST, subtract 5 hours from the Adelaide Time time: 9:00 AM ACDT = 4:00 AM IST.
Adelaide Time (Adelaide time) is used in Adelaide, Australia. IST (India Time) is used in India and Sri Lanka (UTC+5:30, no daylight saving time).
IST here means India Standard Time, not Irish or Israel Standard Time.
Adelaide Time to IST time conversion table
Adelaide Time to IST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Adelaide Time | IST | Day |
|---|---|---|
| 12:00 AM ACDT | 7:00 PM IST | previous day |
| 1:00 AM ACDT | 8:00 PM IST | previous day |
| 2:00 AM ACDT | 9:00 PM IST | previous day |
| 3:00 AM ACDT | 10:00 PM IST | previous day |
| 4:00 AM ACDT | 11:00 PM IST | previous day |
| 5:00 AM ACDT | 12:00 AM IST | night |
| 6:00 AM ACDT | 1:00 AM IST | night |
| 7:00 AM ACDT | 2:00 AM IST | night |
| 8:00 AM ACDT | 3:00 AM IST | night |
| 9:00 AM ACDT | 4:00 AM IST | night |
| 10:00 AM ACDT | 5:00 AM IST | night |
| 11:00 AM ACDT | 6:00 AM IST | — |
| 12:00 PM ACDT | 7:00 AM IST | — |
| 1:00 PM ACDT | 8:00 AM IST | — |
| 2:00 PM ACDT | 9:00 AM IST | work hours |
| 3:00 PM ACDT | 10:00 AM IST | work hours |
| 4:00 PM ACDT | 11:00 AM IST | work hours |
| 5:00 PM ACDT | 12:00 PM IST | — |
| 6:00 PM ACDT | 1:00 PM IST | — |
| 7:00 PM ACDT | 2:00 PM IST | — |
| 8:00 PM ACDT | 3:00 PM IST | — |
| 9:00 PM ACDT | 4:00 PM IST | — |
| 10:00 PM ACDT | 5:00 PM IST | — |
| 11:00 PM ACDT | 6:00 PM IST | — |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Adelaide Time to IST
Subtract 5 hours from the Adelaide Time time to get IST.
Example: 9:00 AM ACDT = 4:00 AM IST.
Across midnight: 1:00 AM ACDT = 8:00 PM IST (previous day). The date changes, so always check the day as well as the hour.
Time difference between Adelaide Time and IST
The time difference between Adelaide Time and IST is not the same all year, because the two sides change for daylight saving time on different dates. In 2026 it works out like this:
- 1 Jan 2026 – 4 Apr 2026: IST is 5 hours behind of Adelaide Time.
- 5 Apr 2026 – 3 Oct 2026: IST is 4 hours behind of Adelaide Time.
- 4 Oct 2026 – 31 Dec 2026: IST is 5 hours behind of Adelaide Time.
Adelaide Time and IST during daylight saving time
- Adelaide Time next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from ACDT (UTC+10:30) to ACST (UTC+9:30).
- IST does not observe daylight saving time; it stays on UTC+5:30 all year.
Best time for a meeting between Adelaide Time and IST
Adelaide Time and IST share 3 hours of the 9 AM–5 PM working day. Any time between 2:00 PM and 5:00 PM ACDT lands between 9:00 AM and 12:00 PM IST, inside working hours for both.
Adelaide Time to IST FAQ
What is the time difference between Adelaide Time and IST?
Right now IST is 5 hours behind ACDT. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Adelaide Time in IST?
9:00 AM ACDT is 4:00 AM IST.
What is 12 PM (noon) Adelaide Time in IST?
12:00 PM ACDT is 7:00 AM IST.
Is IST ahead of or behind Adelaide Time?
IST is 5 hours behind ACDT, so it is earlier in IST than in Adelaide Time.
Does Adelaide Time change for daylight saving time?
Yes. Adelaide Time next changes on 4 Apr 2027, when clocks go back one hour from ACDT to ACST.
Does IST change for daylight saving time?
No. IST stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between Adelaide Time and IST?
Adelaide Time and IST share 3 hours of the 9 AM–5 PM working day. Any time between 2:00 PM and 5:00 PM ACDT lands between 9:00 AM and 12:00 PM IST, inside working hours for both.
Related conversions
Convert IST to Adelaide Time
Convert Adelaide Time to other time zones
Convert other time zones to IST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.