Kolkata Time to AEST Converter
AEDT is 5 hours 30 minutes ahead of IST. 9:00 AM IST = 2:30 PM AEDT.
AEDT is 5 hours 30 minutes ahead of IST at the moment. To convert Kolkata Time to AEST, add 5 hours 30 minutes to the Kolkata Time time: 9:00 AM IST = 2:30 PM AEDT.
Kolkata Time (Kolkata time) is used in Kolkata, India. AEST (Australian Eastern Time) is used in New South Wales, Victoria, Tasmania, ACT; Queensland (Brisbane) all year.
Queensland stays on AEST all year. AEST (Australian Eastern Standard Time) is not in force right now: New South Wales is currently on AEDT. This page uses whichever name applies on the date you pick, so the numbers below say AEDT.
Kolkata Time to AEST time conversion table
Kolkata Time to AEST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Kolkata Time | AEST | Day |
|---|---|---|
| 12:00 AM IST | 5:30 AM AEDT | night |
| 1:00 AM IST | 6:30 AM AEDT | — |
| 2:00 AM IST | 7:30 AM AEDT | — |
| 3:00 AM IST | 8:30 AM AEDT | — |
| 4:00 AM IST | 9:30 AM AEDT | — |
| 5:00 AM IST | 10:30 AM AEDT | — |
| 6:00 AM IST | 11:30 AM AEDT | — |
| 7:00 AM IST | 12:30 PM AEDT | — |
| 8:00 AM IST | 1:30 PM AEDT | — |
| 9:00 AM IST | 2:30 PM AEDT | work hours |
| 10:00 AM IST | 3:30 PM AEDT | work hours |
| 11:00 AM IST | 4:30 PM AEDT | work hours |
| 12:00 PM IST | 5:30 PM AEDT | — |
| 1:00 PM IST | 6:30 PM AEDT | — |
| 2:00 PM IST | 7:30 PM AEDT | — |
| 3:00 PM IST | 8:30 PM AEDT | — |
| 4:00 PM IST | 9:30 PM AEDT | — |
| 5:00 PM IST | 10:30 PM AEDT | night |
| 6:00 PM IST | 11:30 PM AEDT | night |
| 7:00 PM IST | 12:30 AM AEDT | next day |
| 8:00 PM IST | 1:30 AM AEDT | next day |
| 9:00 PM IST | 2:30 AM AEDT | next day |
| 10:00 PM IST | 3:30 AM AEDT | next day |
| 11:00 PM IST | 4:30 AM AEDT | next day |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Kolkata Time to AEST
Add 5 hours 30 minutes to the Kolkata Time time to get AEST.
Example: 9:00 AM IST = 2:30 PM AEDT.
Across midnight: 10:00 PM IST = 3:30 AM AEDT (next day). The date changes, so always check the day as well as the hour.
Time difference between Kolkata Time and AEST
The time difference between Kolkata Time and AEST 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 – 3 Apr 2026: AEST is 5 hours 30 minutes ahead of Kolkata Time.
- 4 Apr 2026 – 2 Oct 2026: AEST is 4 hours 30 minutes ahead of Kolkata Time.
- 3 Oct 2026 – 31 Dec 2026: AEST is 5 hours 30 minutes ahead of Kolkata Time.
Kolkata Time and AEST during daylight saving time
- Kolkata Time does not observe daylight saving time; it stays on UTC+5:30 all year.
- AEST next changes on 4 Apr 2027: clocks go back one hour at 02:59 local time, from AEDT (UTC+11) to AEST (UTC+10).
Best time for a meeting between Kolkata Time and AEST
Kolkata Time and AEST share 2 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 11:30 AM IST lands between 2:30 PM and 5:00 PM AEDT, inside working hours for both.
Kolkata Time to AEST FAQ
What is the time difference between Kolkata Time and AEST?
Right now AEDT is 5 hours 30 minutes ahead of IST. The gap changes 3 times in 2026 because the two sides switch to daylight saving time on different dates.
What is 9 AM Kolkata Time in AEST?
9:00 AM IST is 2:30 PM AEDT.
What is 12 PM (noon) Kolkata Time in AEST?
12:00 PM IST is 5:30 PM AEDT.
Is AEST ahead of or behind Kolkata Time?
AEDT is 5 hours 30 minutes ahead of IST, so it is later in AEST than in Kolkata Time.
Does Kolkata Time change for daylight saving time?
No. Kolkata Time stays on the same offset all year, so conversions never shift for daylight saving time.
Does AEST change for daylight saving time?
Yes. AEST next changes on 4 Apr 2027, when clocks go back one hour from AEDT to AEST.
What is the best time for a meeting between Kolkata Time and AEST?
Kolkata Time and AEST share 2 hours 30 minutes of the 9 AM–5 PM working day. Any time between 9:00 AM and 11:30 AM IST lands between 2:30 PM and 5:00 PM AEDT, inside working hours for both.
Related conversions
Convert AEST to Kolkata Time
Convert Kolkata Time to other time zones
Convert other time zones to AEST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.