Convert the seconds to minutes, dividing by 60. Add the 13 minutes, and convert the result to hours, again dividing by 60.
6hr 55min Newark Liberty (EWR) to Lisbon (LIS) by a nonstop flight operated by TAP Portugal.
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,