[Dylan16807]

> because noon is not post meridian in exactly the same way that is not ante meridian.

That was already implied. I think you're confused about what kbutler was stating. The full argument goes like this:

1. by itself, 12:00 is not post meridian

2. by itself, 12:00 is not ante meridian

3. therefore we must choose which label to use on other merits

4. without 1 or 2, it makes more sense to lump it with the time that's a single digit off by one, and not the time that's many digits off by many

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On top of that, for 100.0000% of the time the clock reads "12:00" around noon, it's PM. Even if you defined the moment of noon to be AM, it would be impossible to ever catch a clock saying 12:00 during the final moments of AM.