Seattle to Philadelphia — Time Difference
Live clocks · Full 24-hour table · United States → United States
Time Difference: Seattle vs Philadelphia
Philadelphia is 3 hours ahead of Seattle. Seattle is in Pacific Daylight Time (PDT, UTC-7) and Philadelphia is in Eastern Daylight Time (EDT, UTC-4).
Use the table below to find the equivalent Philadelphia time for any hour in Seattle. Click any row to see the full conversion page for that hour.
Business Hours — Seattle to Philadelphia
"Good" = both cities within business hours (9 AM–5 PM)
Full 24-Hour Table — Seattle to Philadelphia
Frequently Asked Questions
What is the time difference between Seattle and Philadelphia?
Philadelphia is 3 hours ahead of Seattle. Seattle uses Pacific Daylight Time (PDT, UTC-7) and Philadelphia uses Eastern Daylight Time (EDT, UTC-4).
What time is it in Philadelphia when it is 9 AM in Seattle?
9 AM in Seattle (PDT) equals 12 PM in Philadelphia (EDT).
Is Seattle ahead or behind Philadelphia?
Philadelphia is 3 hours ahead of Seattle.
What is the best time to call from Seattle to Philadelphia?
The best time to call from Seattle to Philadelphia is between 9 AM–2 PM Seattle time, when Philadelphia is also within normal working hours (9 AM–5 PM).
Time Zones
Seattle
Pacific Daylight Time
PDT · UTC-7
Philadelphia
Eastern Daylight Time
EDT · UTC-4
Reverse Conversion
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