Post #1924653
2026-04-12 17:53 UTC
12:30 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.
Replies (1)
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@feannag@sh.itjust.works 2026-04-12 18:12
By the definition of post meridian, though, half past noon should be 0:30 pm.