As far as I can tell? Ten minutes.

[ From the sounds of it he's just woken up recently too. And now that Sion's sitting up he's going to stand up (finally he's been sitting here on the cold ground for who knows how long), though he seems a little woozy on his feet as well. He leans back against the tree behind them. ]

Well hurry up and stand up! It's bad enough I'm fucking handcuffed to you, you don't have to make shit more difficult for me too.