How long does it take to travel by plane to japan from New york?

A random search for flights from Newark Liberty (EWR) to Tokyo Narita (NRT) shows:

OPTION 1: 15hr 25min via Toronto Intl (YYZ)

EWR - YYZ Air Canada Flt 767 Dep 10:35am 11Jun,Fri

YYZ - NRT Air Canada Flt 1 Dep 01:15pm 11Jun,Fri

Flight Duration: 14hr 15min; Layover Time: 1hr 10min; Total Trip Time: 15hr 25min