Midnight and noon in agendas

["Daniel J. Sinder" <djsinder@gmail.com>]

I've noticed that '12pm' when used as a time-of-day specification
puts an entry at 24:00 in the agenda.  '12am' places the item at
noon in the agenda.

It is arguable whether 00:00 should be used instead of 24:00.
Personally, I prefer it the way it is, where midnight events are
placed at 24:00 because if I have something scheduled/due at
midnight, I'd like to see it on the agenda for the day *preceding*
the event/item.

However, the issue I differ on is the interpretation of 12am as noon
and 12pm as midnight.  Although they are both ambiguous, it seems
that 12am is more typically associated with midnight, while 12pm is
associated with noon.  One explanation goes like this:  Since the
24-hour clock runs from 00:00:00--23:59:59, then 00:00:00-11:59:59
is AM and 12:00:00-23:59:59 is PM.

Just curious....is the current mapping a deliberate choice or a bug?

Dan