Tokyo is 17 hours ahead of Seattle during PST, and 16 hours during PDT. When it's 9:00 AM in Seattle (PST), it's 2:00 AM the next day in Tokyo. Japan does not observe DST.
Tokyo uses JST (Japan Standard Time, UTC+9) while Seattle uses PST/PDT (Pacific Time, UTC-8/-7).
Significant time zone challenge! Early morning in Tokyo (6:00 AM - 9:00 AM) corresponds to afternoon in Seattle the previous day (1:00 PM - 4:00 PM PST).
Seattle and Tokyo have strong business connections, especially in technology and aerospace. Boeing and Microsoft maintain significant Japan operations. Direct flights connect the cities in about 10 hours.