Seattle to Toronto Time Difference
Toronto is 3 hours ahead of Seattle. When it is noon in Seattle, it is 15:00 in Toronto.
Los Angeles (UTC-7) → Toronto (UTC-4)
🕐 Interactive Time Explorer
When it's 12:00 in Seattle, it's 15:00 in Toronto
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
Seattle & Toronto✓ Perfect Match (5 hours)
◐ Extended Hours (5 hours)
✈️ Travel Information
Distance
3,325 km
Est. Flight Time
~4.9h
Time Difference
+3h
Work Hours Overlap
5h
Good
🔴 Office Closed
Today 09:00
09:00 - 14:00
⏰ Quick Conversion
06:00
Seattle
09:00
Toronto
09:00
Seattle
12:00
Toronto
12:00
Seattle
15:00
Toronto
15:00
Seattle
18:00
Toronto
18:00
Seattle
21:00
Toronto
21:00
Seattle
00:00
Toronto (+1)
00:00
Seattle
03:00
Toronto
03:00
Seattle
06:00
Toronto
Frequently Asked Questions
How many hours is Seattle behind Toronto?
Toronto is 3 hours ahead of Seattle. When it is 12:00 noon in Seattle, it is 15:00 in Toronto. Seattle operates on America/Los Angeles (UTC-7), while Toronto uses America/Toronto (UTC-4).
What is the best time to call Toronto from Seattle?
There are 5 hours of overlapping business time (9 AM–5 PM) between Seattle and Toronto. The best window is 09:00–14:00 Seattle time (12:00–17:00 in Toronto).
Does the Seattle to Toronto 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 Toronto
The distance between Seattle and Toronto is approximately 3,325 km. A direct flight typically takes around 4.9 hours. Your arrival clock will show local Toronto time — use our Flight Time Calculator to predict exact arrival times.