What is 8 AM IST in AEDT?
8 AM IST = 12:30 PM AEDT (12:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
Timezone converter
IST to AEDT currently uses India Time in Asia/Kolkata and Australian Eastern Time in Australia/Sydney as the live reference pair, with a +4h 30m live gap. IST to AEDT matters whenever Mumbai and Sydney need to coordinate across a +4h 30m gap. The IST side covers India and Israel, while AEDT covers Australia — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.
Last updated Apr 26, 2026. Offset math, DST behavior, and city coverage on both sides are refreshed from the live timezone dataset during the page revalidation window.
IST is ambiguous in this dataset, so the live converter uses Asia/Kolkata as the busiest reference zone while the city list below shows the wider label family.
From
India Time
Asia/Kolkata · GMT+5:30 +05:30
Major markets in this grouping include Mumbai, Delhi, Bengaluru, Hyderabad.
To
Australian Eastern Time
Australia/Sydney · GMT+10 +10:00
Major markets in this grouping include Sydney, Brisbane, Gold Coast, Newcastle.
Current gap
+4h 30m
IST +05:30 vs AEDT +10:00
9-to-5 overlap
3.5h
IST 9:00 AM previous day to 12:30 PM previous day
Representative countries
India, Israel, and Sri Lanka / Australia
Based on the busiest city and zone usage found in the current dataset.
IST (Mumbai, +05:30) to AEDT (Sydney, +10:00) is currently a +4h 30m conversion. Live coverage on the IST side is anchored by Mumbai, Delhi, Bengaluru, and Hyderabad; the AEDT side draws from Sydney, Brisbane, Gold Coast, and Newcastle.
IST to AEDT matters whenever Mumbai and Sydney need to coordinate across a +4h 30m gap. The IST side covers India and Israel, while AEDT covers Australia — that country mix is the practical reason this conversion shows up in calendars rather than the abstract offset math.
The pair sits +4h 30m apart across Asia and Oceania, which usually allows a meaningful shared workday on at least one end.
AEDT follows seasonal clock changes through Australia/Sydney, while IST stays on a fixed offset year-round. The result is a gap that quietly shifts by an hour twice a year — short by an hour in winter (or summer, depending on hemisphere) and back to normal afterwards.
IST and AEDT sit 4h 30m apart, with about 3.5h of shared 9-to-5 time. That is enough room for one daily standup plus one focused working session, which is what most cross-region teams actually use this overlap for.
IST coverage on this page is led by Mumbai, India, Delhi, India, Bengaluru, India, and Hyderabad, India, with 2 more in the live dataset. That mix is what makes IST feel anchored to South and Southeast Asian business hubs in practice rather than just an abbreviation on a chart.
AEDT coverage is led by Sydney, Australia, Brisbane, Australia, Gold Coast, Australia, and Newcastle, Australia, with 2 more anchoring the wider label family. Combined with the IST side, this conversion ends up describing cross-region coordination that uses the morning-on-one-side, afternoon-on-the-other window for live work.
Adjust the time — digits roll like an odometer. Swap button flips the zones.
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| IST | AEDT | Day relation |
|---|---|---|
| 9:00 AM | 1:30 PMMon, Apr 27 | same day |
| 12:00 PM | 4:30 PMMon, Apr 27 | same day |
| 3:00 PM | 7:30 PMMon, Apr 27 | same day |
| 6:00 PM | 10:30 PMMon, Apr 27 | same day |
| 9:00 PM | 1:30 AMTue, Apr 28 | next day |
Quick conversions for 9 AM, noon, 3 PM, 6 PM, and 9 PM based on today's local calendar.
| AEDT | IST | Day relation |
|---|---|---|
| 9:00 AM | 4:30 AMMon, Apr 27 | same day |
| 12:00 PM | 7:30 AMMon, Apr 27 | same day |
| 3:00 PM | 10:30 AMMon, Apr 27 | same day |
| 6:00 PM | 1:30 PMMon, Apr 27 | same day |
| 9:00 PM | 4:30 PMMon, Apr 27 | same day |
IST to AEDT ranges from IST 9:00 AM (which lands at AEDT 1:30 PM) through IST 9:00 PM (AEDT 1:30 AM). Across this +4h 30m gap, the middle of the IST range usually lands in the AEDT afternoon — the reliable window for live calls between the two — while the early and late edges drift into AEDT morning or evening.
AEDT to IST ranges from AEDT 9:00 AM (which lands at IST 4:30 AM) through AEDT 9:00 PM (IST 4:30 PM). Across this +4h 30m gap, the middle of the AEDT range usually lands in the IST afternoon — the reliable window for live calls between the two — while the early and late edges drift into IST morning or evening.
These direct answers are here for the exact-intent searches people actually use, like “10 AM IST to AEDT” or “4 PM IST in AEDT”.
8 AM IST = 12:30 PM AEDT (12:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
9 AM IST = 1:30 PM AEDT (13:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
10 AM IST = 2:30 PM AEDT (14:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
11 AM IST = 3:30 PM AEDT (15:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
12 PM IST = 4:30 PM AEDT (16:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
1 PM IST = 5:30 PM AEDT (17:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
2 PM IST = 6:30 PM AEDT (18:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
3 PM IST = 7:30 PM AEDT (19:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
4 PM IST = 8:30 PM AEDT (20:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
5 PM IST = 9:30 PM AEDT (21:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
6 PM IST = 10:30 PM AEDT (22:30). On today's live calendar that lands on Mon, Apr 27 in AEDT, which means the answer is a same day conversion rather than a static offset lookup.
9 PM IST = 1:30 AM AEDT (01:30). On today's live calendar that lands on Tue, Apr 28 in AEDT, which means the answer is a next day conversion rather than a static offset lookup.
The live gap is +4h 30m right now, based on Asia/Kolkata at +05:30 and Australia/Sydney at +10:00. Australia/Sydney changes offset on October 4, 2026, so the gap moves to +5h 30m after that transition.
The most usable workday block right now is about 3.5 hours: IST 9:00 AM previous day to 12:30 PM previous day, which lines up with AEDT 1:30 PM previous day to 5:00 PM previous day.
Asia/Kolkata
GMT+5:30 · +05:30
Australia/Sydney
GMT+10 · +10:00
These are the busiest live references selected from the abbreviation families on this page.
| IST | AEDT |
|---|---|
| 05:30 | 10:00 |
| 06:30 | 11:00 |
| 07:30 | 12:00 |
| 08:30 | 13:00 |
| 09:30 | 14:00 |
| 10:30 | 15:00 |
| 11:30 | 16:00 |
| 12:30 | 17:00 |
| 13:30 | 18:00 |
| 14:30 | 19:00 |
| 15:30 | 20:00 |
| 16:30 | 21:00 |
| 17:30 | 22:00 |
| 18:30 | 23:00 |
| 19:30 | 00:00 |
| 20:30 | 01:00 |
| 21:30 | 02:00 |
| 22:30 | 03:00 |
| 23:30 | 04:00 |
| 00:30 | 05:00 |
| 01:30 | 06:00 |
| 02:30 | 07:00 |
| 03:30 | 08:00 |
| 04:30 | 09:00 |
Countries represented here include India, Israel, and Sri Lanka.
Countries represented here include Australia.
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