the dude said it was 55mins plus the bell, I think, so i actually took off at the 52 min mark. Then Phil tells me that '55 mins' is only a guide, and if there's chance of a congested finish with another grade, they could keep them out there for up to 10 or 15mins extra. D'OH!! 'Back in my day', it was an hour plus 3, no matter what.