IST to AWST: IST is 2 hours 30 minutes behind AWST
India Standard Time is 2 hours 30 minutes behind Australian Western Time, on every day of the year. It is 7:40 am IST in India and 10:10 am AWST in Australian Western.
Convert a specific time from IST to AWST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between IST and AWST?
Australian Western Time is 2 hours 30 minutes ahead of India Standard Time. To go from IST to AWST you add 2 hours 30 minutes. That gap holds on all 365 days of 2026: neither zone moves its clocks.
IST to AWST conversion table
Every hour of Friday, September 25, 2026 in India, with the matching reading in Australian Western. 2 of the 24 hours land on a different calendar date in Australian Western, which is the part people get wrong when they schedule across this pair.
| IST | IST 24h | AWST | AWST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 2:30 am | 02:30 | same day |
| 1:00 am | 01:00 | 3:30 am | 03:30 | same day |
| 2:00 am | 02:00 | 4:30 am | 04:30 | same day |
| 3:00 am | 03:00 | 5:30 am | 05:30 | same day |
| 4:00 am | 04:00 | 6:30 am | 06:30 | same day |
| 5:00 am | 05:00 | 7:30 am | 07:30 | same day |
| 6:00 am | 06:00 | 8:30 am | 08:30 | same day |
| 7:00 am | 07:00 | 9:30 am | 09:30 | same day |
| 8:00 am | 08:00 | 10:30 am | 10:30 | same day |
| 9:00 am | 09:00 | 11:30 am | 11:30 | same day |
| 10:00 am | 10:00 | 12:30 pm | 12:30 | same day |
| 11:00 am | 11:00 | 1:30 pm | 13:30 | same day |
| 12:00 pm | 12:00 | 2:30 pm | 14:30 | same day |
| 1:00 pm | 13:00 | 3:30 pm | 15:30 | same day |
| 2:00 pm | 14:00 | 4:30 pm | 16:30 | same day |
| 3:00 pm | 15:00 | 5:30 pm | 17:30 | same day |
| 4:00 pm | 16:00 | 6:30 pm | 18:30 | same day |
| 5:00 pm | 17:00 | 7:30 pm | 19:30 | same day |
| 6:00 pm | 18:00 | 8:30 pm | 20:30 | same day |
| 7:00 pm | 19:00 | 9:30 pm | 21:30 | same day |
| 8:00 pm | 20:00 | 10:30 pm | 22:30 | same day |
| 9:00 pm | 21:00 | 11:30 pm | 23:30 | same day |
| 10:00 pm | 22:00 | 12:30 am | 00:30 | the next day |
| 11:00 pm | 23:00 | 1:30 am | 01:30 | the next day |
What are the best hours to schedule a call between IST and AWST?
6 hours of the standard 9:00 am to 5:00 pm working day line up in both zones, from 9:00 am IST to 3:00 pm IST. In Australian Western that window reads 11:30 am to 5:30 pm. Outside it, one side is either not yet at their desk or already gone.
| IST | AWST | Working hours | Note |
|---|---|---|---|
| 9:00 am | 11:30 am | both sides | mid morning in India, mid morning in Australian Western |
| 10:00 am | 12:30 pm | both sides | mid morning in India, noon in Australian Western |
| 11:00 am | 1:30 pm | both sides | mid morning in India, afternoon in Australian Western |
| 12:00 pm | 2:30 pm | both sides | noon in India, afternoon in Australian Western |
| 1:00 pm | 3:30 pm | both sides | afternoon in India, afternoon in Australian Western |
| 2:00 pm | 4:30 pm | both sides | afternoon in India, afternoon in Australian Western |
Does daylight saving change IST to AWST?
India Standard Time does not move its clocks at all, so its UTC+5:30 offset holds every day of the year.
Australian Western Time does not move its clocks at all, so its UTC+8 offset holds every day of the year.
Is IST ahead of or behind AWST?
IST is behind AWST by 2 hours 30 minutes: when it is 12:00 pm in India, it is 2:30 pm in Australian Western. Neither India Standard Time nor Australian Western Time observes daylight saving, so the abbreviations never change and the gap between them is fixed.
India Standard Time covers the whole of India on a single half hour offset. Australian Western Time covers Perth and Western Australia, which stopped moving its clocks in 2009. The identifiers behind them are Asia/Kolkata and Australia/Perth, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is IST in AWST?
- IST is 2 hours 30 minutes behind AWST. 9:00 am IST is 11:30 am AWST.
- How many hours ahead is AWST of IST?
- AWST is 2 hours 30 minutes ahead of IST.
- What time is it in Australian Western right now?
- 10:10 am AWST on Friday, September 25, 2026.
- When can India and Australian Western meet during working hours?
- Between 9:00 am and 3:00 pm IST, which is 11:30 am to 5:30 pm AWST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so IST and AWST are the abbreviations genuinely in force today rather than a fixed assumption.
Other conversions
12 and 24 hour converter · 8 hours from now · Today · Day counter