It took four of us 45 minutes to fix a puncture on my bike a couple of weeks ago.
So that's three (man)hours, which should take some beating.
It was 7am and we decided to fix it with the wheel in situ because the bike has a hub gear which makes wheel removal a fiddle.
The lit underpass we used looked a good idea, but it's a wind tunnel, so what with that and traffic noise, it took an age to find the tiny nick in the tube.
I found the tiny shard of glass in the tyre, and one of my companions applied a Park self-adhesive patch to the tube, which is still holding.
Marathon Supreme tyre, which came off and went on by hand.
So in many respects, the job went well.
Makes me wonder where the time went.