Chennai to Sydney Time
Live IST ↔ AEST/AEDT time converter · Tamil Nadu, India → Australia DST applies
24-Hour Overlap Timeline
⚠ Sydney observes daylight saving time — offset shifts between UTC+10 and UTC+11 seasonally
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UTC → | ||||||||||||||||||||||||
| 🇮🇳 Chennai UTC+5:30 | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a |
| 🇦🇺 Sydney UTC+10 | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a |
IST (Indian Standard Time) to Sydney (AEST (Australian Eastern Standard Time)/AEDT (Australian Eastern Daylight Time)) Conversion Table
All 24 hours of the day · based on standard time — AEST (Australian Eastern Standard Time).
Live offset may differ during DST (AEDT (Australian Eastern Daylight Time)) — see clock above.
✅ Both in business hours 🔵 India office hours only 🟢 Sydney office hours only
| IST (Indian Standard Time) — Chennai | Sydney — AEST/AEDT | Working hours |
|---|---|---|
| 12:00 AM IST (Indian Standard Time) | 4:30 AM AEST | |
| 1:00 AM IST (Indian Standard Time) | 5:30 AM AEST | |
| 2:00 AM IST (Indian Standard Time) | 6:30 AM AEST | |
| 3:00 AM IST (Indian Standard Time) | 7:30 AM AEST | |
| 4:00 AM IST (Indian Standard Time) | 8:30 AM AEST | |
| 5:00 AM IST (Indian Standard Time) | 9:30 AM AEST | 🟢 AEST only |
| 6:00 AM IST (Indian Standard Time) | 10:30 AM AEST | 🟢 AEST only |
| 7:00 AM IST (Indian Standard Time) | 11:30 AM AEST | 🟢 AEST only |
| 8:00 AM IST (Indian Standard Time) | 12:30 PM AEST | 🟢 AEST only |
| 9:00 AM IST (Indian Standard Time) | 1:30 PM AEST | ✅ overlap |
| 10:00 AM IST (Indian Standard Time) | 2:30 PM AEST | ✅ overlap |
| 11:00 AM IST (Indian Standard Time) | 3:30 PM AEST | ✅ overlap |
| 12:00 PM IST (Indian Standard Time) | 4:30 PM AEST | ✅ overlap |
| 1:00 PM IST (Indian Standard Time) | 5:30 PM AEST | 🔵 India only |
| 2:00 PM IST (Indian Standard Time) | 6:30 PM AEST | 🔵 India only |
| 3:00 PM IST (Indian Standard Time) | 7:30 PM AEST | 🔵 India only |
| 4:00 PM IST (Indian Standard Time) | 8:30 PM AEST | 🔵 India only |
| 5:00 PM IST (Indian Standard Time) | 9:30 PM AEST | 🔵 India only |
| 6:00 PM IST (Indian Standard Time) | 10:30 PM AEST | |
| 7:00 PM IST (Indian Standard Time) | 11:30 PM AEST | |
| 8:00 PM IST (Indian Standard Time) | 12:30 AM AEST | +1 day |
| 9:00 PM IST (Indian Standard Time) | 1:30 AM AEST | +1 day |
| 10:00 PM IST (Indian Standard Time) | 2:30 AM AEST | +1 day |
| 11:00 PM IST (Indian Standard Time) | 3:30 AM AEST | +1 day |
Explore Chennai — Top Attractions & Travel Guide
Discover top attractions, local tips and hidden gems in Chennai on india-guide.in — India's curated travel destination guide.
Explore Chennai on india-guide.in →Best Time to Call Sydney from Chennai
Both Chennai and Sydney are in standard business hours simultaneously during this window. Schedule meetings, investor calls, or client demos in this slot for maximum availability.
⏰ DST reminder: During AEDT (Oct–Apr, Australia's summer = India's winter) Sydney is 5h 30m ahead of IST. During AEST (Apr–Oct) it is 4h 30m ahead. This is opposite to US/UK DST, so Indian schedulers must track two separate seasonal changes.
Chennai, India
Chennai is south India's commercial capital and the automotive hub of Asia. All major global automakers — Hyundai, BMW, Ford (former), Nissan, Renault — have manufacturing plants in the Chennai–Sriperumbudur corridor. The city is also a significant IT and BPO hub, known as the 'Detroit of India' for automotive and the 'Next Silicon Valley of India' for tech. Chennai handles 40% of India's auto exports.
- India's automotive capital — Hyundai, BMW, Nissan plants
- 40% of India's automobile exports shipped from Chennai port
- World's 4th largest beach (Marina Beach) draws tourism
- Tamil classical arts and Carnatic music global centre
Sydney, Australia
Sydney is Australia's largest city and economic engine, home to the Australian Securities Exchange and major mining, finance, and technology companies. Australia's Indian community — nearly 800,000 strong — is one of the fastest-growing, with Sydney and Melbourne as the primary destinations. Indian-owned businesses, restaurants, and temples are a vibrant part of the cityscape.
- Southern Hemisphere DST — opposite season to US/UK
- India's top 3 migration destination
- Direct non-stop flights from 5 Indian cities
- Growing Indian tech community in Sydney
Frequently Asked Questions
What is the time difference between Chennai and Sydney?
When do clocks change in Sydney and how does it affect IST?
During AEDT (Oct–Apr, Australia's summer = India's winter) Sydney is 5h 30m ahead of IST. During AEST (Apr–Oct) it is 4h 30m ahead. This is opposite to US/UK DST, so Indian schedulers must track two separate seasonal changes.