Timezone conversion
IST to AEST Time — Convert India Standard Time to Australian Eastern Standard Time
AEST is currently 4 hours and 30 minutes ahead of IST. The gap shifts across the year: around January AEST is 5 hours and 30 minutes ahead of IST, and around July it is 4 hours and 30 minutes ahead of IST, because one or both zones observe daylight saving.
AEST is currently 4 hours and 30 minutes ahead of IST.
Abbreviation disambiguation
On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.
On Clockjumper, AEST refers to Australian Eastern Standard Time, UTC+10 — the winter time in New South Wales, Victoria, Tasmania and the ACT. From the first Sunday in October to the first Sunday in April those states move to AEDT (UTC+11). Queensland stays on AEST all year and does not observe daylight saving.
Interactive converter
12:00PM
Select both cities to see the converted time.
Full IST to AEST conversion table
| IST | AEST |
|---|---|
| 12:00 AM | 4:30 AM |
| 1:00 AM | 5:30 AM |
| 2:00 AM | 6:30 AM |
| 3:00 AM | 7:30 AM |
| 4:00 AM | 8:30 AM |
| 5:00 AM | 9:30 AM |
| 6:00 AM | 10:30 AM |
| 7:00 AM | 11:30 AM |
| 8:00 AM | 12:30 PM |
| 9:00 AM | 1:30 PM |
| 10:00 AM | 2:30 PM |
| 11:00 AM | 3:30 PM |
| 12:00 PM | 4:30 PM |
| 1:00 PM | 5:30 PM |
| 2:00 PM | 6:30 PM |
| 3:00 PM | 7:30 PM |
| 4:00 PM | 8:30 PM |
| 5:00 PM | 9:30 PM |
| 6:00 PM | 10:30 PM |
| 7:00 PM | 11:30 PM |
| 8:00 PM | 12:30 AM(next day) |
| 9:00 PM | 1:30 AM(next day) |
| 10:00 PM | 2:30 AM(next day) |
| 11:00 PM | 3:30 AM(next day) |
Daylight saving and how the gap changes
Around January AEST is 5 hours and 30 minutes ahead of IST. Around July it is 4 hours and 30 minutes ahead of IST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.
Frequently asked questions
- Is AEST ahead of or behind IST right now?
- AEST is currently 4 hours and 30 minutes ahead of IST.
- What is the current IST to AEST time difference?
- Right now the gap is 4 hours and 30 minutes — AEST is 4 hours and 30 minutes ahead of IST.
- Does the IST → AEST offset change during the year?
- Yes. Around January AEST is 5 hours and 30 minutes ahead of IST; around July it is 4 hours and 30 minutes ahead of IST. The converter above always reflects the correct offset for the date you pick.
- Does IST observe daylight saving time?
- No — India Standard Time stays at a fixed UTC offset year-round.
- Does AEST observe daylight saving time?
- AEST is itself the daylight-saving form. Australian Eastern Standard Time is in force at UTC+10 through the summer months; outside that window the same zone is on AEDT (UTC+11).
- What time is 3 AM IST in AEST?
- 3:00 AM IST is 7:30 AM AEST.
- What time is 8 AM IST in AEST?
- 8:00 AM IST is 12:30 PM AEST.
- What time is 9 AM IST in AEST?
- 9:00 AM IST is 1:30 PM AEST.
- What time is 10 AM IST in AEST?
- 10:00 AM IST is 2:30 PM AEST.
- What time is 11 AM IST in AEST?
- 11:00 AM IST is 3:30 PM AEST.
- What time is 12 PM (noon) IST in AEST?
- 12:00 PM IST is 4:30 PM AEST.
- What time is 2 PM IST in AEST?
- 2:00 PM IST is 6:30 PM AEST.
- What time is 3 PM IST in AEST?
- 3:00 PM IST is 7:30 PM AEST.
- What time is 4 PM IST in AEST?
- 4:00 PM IST is 8:30 PM AEST.
- What time is 5 PM IST in AEST?
- 5:00 PM IST is 9:30 PM AEST.
- What time is 9 PM IST in AEST?
- 9:00 PM IST is 1:30 AM (next day) AEST.
- What time is 10 PM IST in AEST?
- 10:00 PM IST is 2:30 AM (next day) AEST.
- When is the best time to schedule a call between IST and AEST?
- The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 12:30 PM IST (≈ 3 hours and 30 minutes). The midpoint of that window — 10:45 AM IST, 3:15 PM AEST — is the safest single slot to propose for a live call.
- What time zone does IST refer to?
- IST refers to India Standard Time (IANA: Asia/Kolkata).
- What time zone does AEST refer to?
- AEST refers to Australian Eastern Standard Time (IANA: Australia/Sydney).
- Is IST on this page the same as other zones that share the letters "IST"?
- On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.
- Is AEST on this page the same as other zones that share the letters "AEST"?
- On Clockjumper, AEST refers to Australian Eastern Standard Time, UTC+10 — the winter time in New South Wales, Victoria, Tasmania and the ACT. From the first Sunday in October to the first Sunday in April those states move to AEDT (UTC+11). Queensland stays on AEST all year and does not observe daylight saving.