From London to Brunei how many hours?

A random search for flights from London Heathrow (LHR) to Bandar Seri Begwan (BWN) shows:

OPTION 1: 16hr 55min Direct flight [stops in Dubai (DXB)]
LHR - BWN Royal Brunei Airlines Flt 98 Dep 09:40am 23Apr,Fri
Flight Duration: 16hr 55min