Seattle to Sydney Time Difference
Sydney is 17 hours ahead of Seattle. When it is noon in Seattle, it is 05:00 in Sydney.
Los Angeles (UTC-7) → Sydney (UTC+10)
🕐 Interactive Time Explorer
When it's 14:00 in Seattle, it's 07:00 in Sydney
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Seattle & Sydney✓ Perfect Match (1 hours)
◐ Extended Hours (7 hours)
✈️ Travel Information
Distance
12,471 km
Est. Flight Time
~15.7h
Time Difference
+17h
Work Hours Overlap
1h
Limited
🔴 Office Closed
Today 16:00
16:00 - 17:00
⏰ Quick Conversion
06:00
Seattle
23:00
Sydney
09:00
Seattle
02:00
Sydney (+1)
12:00
Seattle
05:00
Sydney (+1)
15:00
Seattle
08:00
Sydney (+1)
18:00
Seattle
11:00
Sydney (+1)
21:00
Seattle
14:00
Sydney (+1)
00:00
Seattle
17:00
Sydney
03:00
Seattle
20:00
Sydney
Frequently Asked Questions
How many hours is Seattle behind Sydney?
Sydney is 17 hours ahead of Seattle. When it is 12:00 noon in Seattle, it is 05:00 in Sydney. Seattle operates on America/Los Angeles (UTC-7), while Sydney uses Australia/Sydney (UTC+10).
What is the best time to call Sydney from Seattle?
There are 2 hours of overlapping business time (9 AM–5 PM) between Seattle and Sydney. The best window is 16:00–18:00 Seattle time (09:00–11:00 in Sydney).
Does the Seattle 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 Seattle and Sydney
The distance between Seattle and Sydney is approximately 12,471 km. A direct flight typically takes around 15.7 hours. Your arrival clock will show local Sydney time — use our Flight Time Calculator to predict exact arrival times.