It’s “noon” and “midnight,” okay?

I’m going to say this only once. “Meridiem” means middle of the day. “Ante” means before and “post” means after. They’re all from Latin. The middle of the day, the meridiem, is noon. As in 12 noon. Ante meridiem (a.m.) is before noon. Post meridiem (p.m.) is after noon.

Noon is neither before nor after the middle of the day, neither a.m. nor p.m.: it’s exactly noon! Read more