Hah! and noon is?

I've lost track of the number of times I've caught people out with 12:00 - is that AM or PM? Noon or Midnight.

Worse are the ones who send maintenance notices out for 08:00 and then crib afterwards that "Of course it meant 08:00 in the evening, we thought that was obvious so we didn't bother with the PM"

And people who send mails with times of (say) 13:00 GMT when what they actually mean is 13:00 local time in the UK (which is currently 12:00 GMT as we are in summer time).

Is it hot in here? Nurse!