Flight Kansai International Airport departs from Osaka Kansai International Airport at 10:05 and arrives at Zurich Zürich Airport at 15:45.
The flighttime is about 12h 40m. The distance travelled ("as the bird flies"): 13945 Km. So the average speed is roughly 1101 Km.
There is an 7 hour time difference between Osaka and Zurich