Austin to Sydney Time Difference
Sydney is 15 hours ahead of Austin. When it is noon in Austin, it is 03:00 in Sydney.
Chicago (UTC-5) → Sydney (UTC+10)
🕐 Interactive Time Explorer
When it's 04:00 in Austin, it's 19:00 in Sydney
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Austin & Sydney◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
13,630 km
Est. Flight Time
~17h
Time Difference
+15h
Work Hours Overlap
0h
None
🔴 Office Closed
No overlap available
No overlap
⏰ Quick Conversion
06:00
Austin
21:00
Sydney
09:00
Austin
00:00
Sydney (+1)
12:00
Austin
03:00
Sydney (+1)
15:00
Austin
06:00
Sydney (+1)
18:00
Austin
09:00
Sydney (+1)
21:00
Austin
12:00
Sydney (+1)
00:00
Austin
15:00
Sydney
03:00
Austin
18:00
Sydney
Frequently Asked Questions
How many hours is Austin behind Sydney?
Sydney is 15 hours ahead of Austin. When it is 12:00 noon in Austin, it is 03:00 in Sydney. Austin operates on America/Chicago (UTC-5), while Sydney uses Australia/Sydney (UTC+10).
What is the best time to call Sydney from Austin?
Standard business hours (9 AM–5 PM) do not overlap between Austin and Sydney due to the 15 hours difference. Consider early morning or late evening calls, or use async communication.
Does the Austin 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 Austin and Sydney
The distance between Austin and Sydney is approximately 13,630 km. A direct flight typically takes around 17 hours. Your arrival clock will show local Sydney time — use our Flight Time Calculator to predict exact arrival times.