Thread by @doctorcherokee

I see this mistake a LOT.

"12PM" and "12AM" aren't times.

The "M" in "AM" and "PM" stands for "meridiam," as in a divider. The strike of 12 noon divides the day into before noon (AM) & after noon (PM) parts.

Use 12N, or use 12:01PM.
Use 12M, or use 12:01AM.

#SundayMorning

If you use "12AM" or "12PM," it's ambiguous. Using "midnight" can also be ambiguous.

If you say, "Wednesday at 12AM," what does that even mean?!
1. Wed noon?
2. Tue midnight leading into Wed?
3. Wed midnight leading into Thu?

If you say "Wed at 12:01AM," that's unambiguous. 👍

P.S. "By convention, 12AM denotes midnight and 12PM denotes noon."
en.wikipedia.org/wiki/12-hour_c…

I think that "convention" is due to so many people making the mistake over and over again, and so we just accept it.

I DON'T ACCEPT IT.