Seattle to Sydney Time Difference
🇺🇸 Seattle is currently 18 hours ahead of 🇦🇺 Sydney. This difference varies between 17h and 19h due to Daylight Saving Time.
Live Calculator
Atin 🇺🇸 Seattle→it will be—in 🇦🇺 Sydney
Open full calculator →DST-accurate · shareable link
Difference
+18h
Business overlap
None
Distance
12,470 km
Approx. flight
14.7h
Hour-by-Hour: Seattle to Sydney
| 🇺🇸 Seattle | 🇦🇺 Sydney | Note |
|---|---|---|
| 12:00 AM | 6:00 PM(prev day) | Previous day |
| 1:00 AM | 7:00 PM(prev day) | Previous day |
| 2:00 AM | 8:00 PM(prev day) | Previous day |
| 3:00 AM | 9:00 PM(prev day) | Previous day |
| 4:00 AM | 10:00 PM(prev day) | Previous day |
| 5:00 AM | 11:00 PM(prev day) | Previous day |
| 6:00 AM | 12:00 AM | |
| 7:00 AM | 1:00 AM | |
| 8:00 AM | 2:00 AM | |
| 9:00 AM | 3:00 AM | |
| 10:00 AM | 4:00 AM | |
| 11:00 AM | 5:00 AM | |
| 12:00 PM | 6:00 AM | |
| 1:00 PM | 7:00 AM | |
| 2:00 PM | 8:00 AM | |
| 3:00 PM | 9:00 AM | |
| 4:00 PM | 10:00 AM | |
| 5:00 PM | 11:00 AM | |
| 6:00 PM | 12:00 PM | |
| 7:00 PM | 1:00 PM | |
| 8:00 PM | 2:00 PM | |
| 9:00 PM | 3:00 PM | |
| 10:00 PM | 4:00 PM | |
| 11:00 PM | 5:00 PM |
Daylight Saving Time (DST)
Both Seattle and Sydney observe Daylight Saving Time, but they may switch on different dates. The time difference varies between 17 hours ahead and 19 hours ahead throughout the year. Currently, Seattle is 18 hours ahead relative to Sydney.
Min difference
17h
Max difference
19h
Best Meeting Times
There is no overlap between standard business hours (9 AM – 6 PM) in Seattle and Sydney. Consider scheduling early morning or late evening calls to bridge the gap.
Frequently Asked Questions
What is the time difference between Seattle and Sydney?
The time difference between Seattle and Sydney is currently 18 hours ahead. Seattle uses PDT (UTC-7), while Sydney uses GMT+11 (UTC+11). This difference varies seasonally due to Daylight Saving Time, ranging from 17 hours ahead to 19 hours ahead.
When it's noon in Seattle, what time is it in Sydney?
When it's 12:00 PM (noon) in Seattle, it is 6:00 AM in Sydney. Use our calculator above to convert any other time.
Does the time difference between Seattle and Sydney change?
Yes, the time difference changes throughout the year. Because Seattle observes Daylight Saving Time, the offset shifts between 17 hours ahead and 19 hours ahead at different times of the year.
What are the best times to schedule a call between Seattle and Sydney?
There is no overlap between standard business hours (9 AM – 6 PM) in Seattle and Sydney. Consider scheduling early morning in one city or late evening in the other to find a mutually reasonable time.
Is Seattle ahead or behind Sydney?
Seattle is currently 18 hours behind Sydney.
What time zone is Seattle in?
Seattle is in the America/Los Angeles time zone, currently using PDT (UTC-7). Seattle observes Daylight Saving Time, so the offset changes twice a year.
What time is midnight in Seattle in Sydney?
When it is midnight (12:00 AM) in Seattle, it is 6:00 PM in Sydney.