IST to Cairns Time Converter
AEST is 4 hours 30 minutes ahead of IST. 9:00 AM IST = 1:30 PM AEST.
AEST is 4 hours 30 minutes ahead of IST. To convert IST to Cairns Time, add 4 hours 30 minutes to the IST time: 9:00 AM IST = 1:30 PM AEST.
IST (India Time) is used in India and Sri Lanka (UTC+5:30, no daylight saving time). Cairns Time (Cairns time) is used in Cairns, Australia.
IST here means India Standard Time, not Irish or Israel Standard Time.
IST to Cairns Time time conversion table
IST to Cairns Time on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| IST | Cairns Time | Day |
|---|---|---|
| 12:00 AM IST | 4:30 AM AEST | night |
| 1:00 AM IST | 5:30 AM AEST | night |
| 2:00 AM IST | 6:30 AM AEST | — |
| 3:00 AM IST | 7:30 AM AEST | — |
| 4:00 AM IST | 8:30 AM AEST | — |
| 5:00 AM IST | 9:30 AM AEST | — |
| 6:00 AM IST | 10:30 AM AEST | — |
| 7:00 AM IST | 11:30 AM AEST | — |
| 8:00 AM IST | 12:30 PM AEST | — |
| 9:00 AM IST | 1:30 PM AEST | work hours |
| 10:00 AM IST | 2:30 PM AEST | work hours |
| 11:00 AM IST | 3:30 PM AEST | work hours |
| 12:00 PM IST | 4:30 PM AEST | work hours |
| 1:00 PM IST | 5:30 PM AEST | — |
| 2:00 PM IST | 6:30 PM AEST | — |
| 3:00 PM IST | 7:30 PM AEST | — |
| 4:00 PM IST | 8:30 PM AEST | — |
| 5:00 PM IST | 9:30 PM AEST | — |
| 6:00 PM IST | 10:30 PM AEST | night |
| 7:00 PM IST | 11:30 PM AEST | night |
| 8:00 PM IST | 12:30 AM AEST | next day |
| 9:00 PM IST | 1:30 AM AEST | next day |
| 10:00 PM IST | 2:30 AM AEST | next day |
| 11:00 PM IST | 3:30 AM AEST | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert IST to Cairns Time
Add 4 hours 30 minutes to the IST time to get Cairns Time.
Example: 9:00 AM IST = 1:30 PM AEST.
Across midnight: 10:00 PM IST = 2:30 AM AEST (next day). The date changes, so always check the day as well as the hour.
Time difference between IST and Cairns Time
The time difference between IST and Cairns Time is 4 hours 30 minutes all year – AEST is ahead of IST.
IST and Cairns Time during daylight saving time
- IST does not observe daylight saving time; it stays on UTC+5:30 all year.
- Cairns Time does not observe daylight saving time; it stays on UTC+10 all year.
Best time for a meeting between IST and Cairns Time
IST and Cairns Time share 3 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:30 PM IST lands between 1:30 PM and 5:00 PM AEST, inside working hours for both.
IST to Cairns Time FAQ
What is the time difference between IST and Cairns Time?
AEST is 4 hours 30 minutes ahead of IST all year. 9:00 AM IST = 1:30 PM AEST.
What is 9 AM IST in Cairns Time?
9:00 AM IST is 1:30 PM AEST.
What is 12 PM (noon) IST in Cairns Time?
12:00 PM IST is 4:30 PM AEST.
Is Cairns Time ahead of or behind IST?
AEST is 4 hours 30 minutes ahead of IST, so it is later in Cairns Time than in IST.
Does IST change for daylight saving time?
No. IST stays on the same offset all year, so conversions never shift for daylight saving time.
Does Cairns Time change for daylight saving time?
No. Cairns Time stays on the same offset all year, so conversions never shift for daylight saving time.
What is the best time for a meeting between IST and Cairns Time?
IST and Cairns Time share 3 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 12:30 PM IST lands between 1:30 PM and 5:00 PM AEST, inside working hours for both.
Related conversions
Convert Cairns Time to IST
Convert IST to other time zones
Convert other time zones to Cairns Time
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.