Sometimes the game starts, and the flyer is moving at less than half speed, right out of the gate. It's kinda annoying, resetting the game usually works.
Waaaay easier to look at the minute hand first. Also, small bug, it's possible to click a clock showing the right time, and get it wrong. If is says '1:00' there is a 13:00 clock identical to the correct one, that you can click and be incorrect. No biggie though.
30'59" Pretty good game. Simple but stimulating. Removing the necessity for a mouse would make it nicer. I like the limited speed of the arrow key only move.