6hr 30min = 390min; 3hr 45min = 225min. 390 - 225 = 165min, or 2hr 45min.
6hr 25min to 6hr 30min Amsterdam (AMS) to Dubai (DXB) by a nonstop flight operated by KLM.
6hr 00min to 6hr 20min Dubai (DXB) to Bangkok (BKK) by a nonstop flight operated by Emirates Airlines or Thai Airways.
6hr
6hr 30minutes.
CW2 6HR
6hr 30min to 6hr 40min Paris (CDG) to Dubai (DXB) by a nonstop flight operated by Air France or Emirates Airlines.
6hr 25min to 6hr 35min London Heathrow (LHR) to Bahrain (BAH) by a nonstop flight operated by British Airways or Gulf Air.
6hr 30min to 6hr 45min Kuwait (KWI) to London Heathrow (LHR) by a nonstop flight operated by British Airways or Kuwait Airways.
It is 10 hours earlier in California.
6hr 17min to 6hr 32min Philadelphia (PHL) to San Francisco (SFO) by a nonstop flight operated by U S Airways or United Airlines,
A random search for nonstop flights from DXB to BKK on 14Aug,Fri shows: Emirates Airlines Flt 384 Dep 03:15am 6hr 10min Emirates Airlines Flt 418 Dep 08:50am 6hr 20min Emirates Airlines Flt 372 Dep 09:40am 6hr 20min Thai Airways Flt 518 / ANA Flt 5993 Dep 10:40pm 6hr 25min Fares by 1 Stop flights are much cheaper.