Lol ok it's an educated guess. He was there at 4:45am when I woke up and at 5:30am when I left and then I asked my girlfriend if he was still there when she woke up and he was at 8:30am and still there when she left for nursing school at 10:00am, I work 2 miles away from my house so on lunch I drive home everyday and he was still in same exact position at 12:05pm and then was still there at 12:50pm then I got out at 3:30 and drove to get my girlfriend and arrived home at about 5:00pm and he was in exact same position until I picked him up to inspect him and then fed and looked in water bowl. Yes it's possible he got out and hid for awhile and came back but with the timeline I have I'm pretty sure he was there for at least 12hrs. Honestly probably a little longer since he was pretty settled in when I woke up but I can't say how much before, could of been 10-15 mins or could of been hours before.