How long does it take to fly from Bangkok to Madrid?

A random search for flights from Madrid Barajas (MAD) to Bangkok (BKK) shows:

OPTION 1: 14hr 10min via Zurich (ZRH)

MAD - ZRH Swiss International Airlines Flt 2021 Dep 09:50am 12Feb,Fri

ZRH - BKK Swiss International Airlines Flt 4300 Dep 01:15pm 12Feb,Fri

Operated by Thai Airways

Flight Duration: 13hr 00min; Layover Time: 1hr 10min; Total Trip Time: 14hr 10min