Next September (2014) I will fly on vacation from São Paulo (GRU) to Doha (DOH), leaving at 02:45 (Brazil local time) and arriving at 23:00 (Qatar local time). Assuming that the flight has 13h duration, and that in Brazil, the sun rises at 6:00 (3 hours after departure), I'm in doubt… Will I see the first (and the last) sun shines from the Atlantic Ocean? Is there some tool that brings me this information based on flight times and places?