[gbl08ma]

I believe that hours going up to 12 instead of going 0 .. 11 is because you can't quite hear a bell strike zero times, no?

[dpkonofa]

Although that's kind of a clever response, most bells have a chime to alert you to the hour change so it would just be the chime without the counted bell strikes. Better yet, since 0 would always be the start of a new day, make the strikes do some kind of awesome song.