It varies, but the 3 I've been to (2013, 2014, 2017) started either at 5 or 5:30, then we ate afterwards. All those concerts were scheduled to start at 8, but usually were at least 20 minutes or more late starting. I've never done limo watch, so maybe somebody else could answer what time he usually arrives. I remember at one of those concerts his limo pulled right into the arena by the stage (on our right, stage left) for soundcheck. He must have been running late I think.