Sydney to Seattle Time Difference
Seattle is 17 hours behind Sydney. When it is noon in Sydney, it is 19:00 in Seattle.
Sydney (UTC+10) → Los Angeles (UTC-7)
🕐 Interactive Time Explorer
When it's 20:00 in Sydney, it's 03:00 in Seattle
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Sydney & Seattle✓ 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 09:00
09:00 - 10:00
⏰ Quick Conversion
06:00
Sydney
13:00
Seattle (-1)
09:00
Sydney
16:00
Seattle (-1)
12:00
Sydney
19:00
Seattle (-1)
15:00
Sydney
22:00
Seattle (-1)
18:00
Sydney
01:00
Seattle
21:00
Sydney
04:00
Seattle
00:00
Sydney
07:00
Seattle (-1)
03:00
Sydney
10:00
Seattle (-1)
Frequently Asked Questions
How many hours is Sydney ahead of Seattle?
Seattle is 17 hours behind Sydney. When it is 12:00 noon in Sydney, it is 19:00 in Seattle. Sydney operates on Australia/Sydney (UTC+10), while Seattle uses America/Los Angeles (UTC-7).
What is the best time to call Seattle from Sydney?
There is 1 hour of overlapping business time (9 AM–5 PM) between Sydney and Seattle. The best window is 09:00–10:00 Sydney time (16:00–17:00 in Seattle).
Does the Sydney to Seattle 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 Sydney and Seattle
The distance between Sydney and Seattle is approximately 12,471 km. A direct flight typically takes around 15.7 hours. Your arrival clock will show local Seattle time — use our Flight Time Calculator to predict exact arrival times.