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Time Difference: Seattle to Sydney
🇺🇸SeattleUTC-8
vs🇦🇺SydneyUTC+10
🇺🇸
Seattle, US
Fri, Apr 17
🇦🇺
Sydney, Australia
Sat, Apr 18
Click a time to convert
Time Difference
17 hours
Sydney is 17 hours ahead of Seattle
Seattle vs Sydney timezone guide
Seattle (US) uses the America/Los_Angeles timezone at UTC-8, while Sydney (Australia) uses Australia/Sydney at UTC+10. This means Sydney is 18 hours ahead of Seattle (based on standard offsets — the live difference above accounts for daylight saving time).
When scheduling a call or meeting between Seattle and Sydney, look for the overlapping work hours highlighted above. The live clocks on this page update every second, and the difference adjusts automatically when either city enters or exits daylight saving time.