More like 12 hours 6 minutes.
As for the reloads, the worst was around 30 during the approach to the mine Lianna was in (the big fight outside the door). 20 to 40 reloads on the battle against the lizard guy to free her. That was my first mission and I hit it around level 8 or so, so most of the Geth could one shot my Vanguard, and the lizard merc could one shot my party. Only finally won because the lizard glitched and got stuck in the floor so I could blow his head off with a pistol (think I was still using the second pistol from the tutorial). My solider had a much easier time of it. In fact, they had a much easier time with the game period. I blame the crap magic system.