Chennai to Sydney Time Difference
Sydney is 4 hours 30 min ahead of Chennai. When it is noon in Chennai, it is 16.5:00 in Sydney.
Kolkata (UTC+5:30) → Sydney (UTC+10)
🕐 Interactive Time Explorer
When it's 06:00 in Chennai, it's 10.5:00 in Sydney
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Chennai & Sydney✓ Perfect Match (4 hours)
◐ Extended Hours (6 hours)
✈️ Travel Information
Distance
9,126 km
Est. Flight Time
~11.7h
Time Difference
+4.5h
Work Hours Overlap
4h
Good
🟢 Good to Call Now
11:39
09:00 - 13:00
⏰ Quick Conversion
06:00
Chennai
10.5:00
Sydney
09:00
Chennai
13.5:00
Sydney
12:00
Chennai
16.5:00
Sydney
15:00
Chennai
19.5:00
Sydney
18:00
Chennai
22.5:00
Sydney
21:00
Chennai
1.5:00
Sydney (+1)
00:00
Chennai
4.5:00
Sydney
03:00
Chennai
7.5:00
Sydney
Frequently Asked Questions
How many hours is Chennai behind Sydney?
Sydney is 4 hours 30 min ahead of Chennai. When it is 12:00 noon in Chennai, it is 16.5:00 in Sydney. Chennai operates on Asia/Kolkata (UTC+5.5), while Sydney uses Australia/Sydney (UTC+10).
What is the best time to call Sydney from Chennai?
There are 4 hours of overlapping business time (9 AM–5 PM) between Chennai and Sydney. The best window is 09:00–13:00 Chennai time (13.5:00–17.5:00 in Sydney).
Does the Chennai to Sydney time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between Chennai and Sydney
The distance between Chennai and Sydney is approximately 9,126 km. A direct flight typically takes around 11.7 hours. Your arrival clock will show local Sydney time — use our Flight Time Calculator to predict exact arrival times.