Comment on America
Mouselemming@sh.itjust.works 5 hours ago12:30 pm is half-past noon.
12:30 am is half past midnight, or as you would say 00:30
The m is “meridian” which is noon (sun straight up)
The a is ante/before and the p is post/after
In olden days it was easier to look up and set your clock at noon than midnight.
feannag@sh.itjust.works 5 hours ago
By the definition of post meridian, though, half past noon should be 0:30 pm.
Mouselemming@sh.itjust.works 4 hours ago
We use the 12 at both ends because there it is sitting at the top of the clock