Flight Narita International Airport departs from Tokyo Narita International Airport at 20:00 and arrives at Cebu Mactan-Cebu International Airport at 00:20.
The flighttime is about 5h 20m. The distance travelled ("as the bird flies"): 2606 Km. So the average speed is roughly 489 Km.
There is an 1 hour time difference between Tokyo and Cebu