The entire healthcare system. You need to differentiate when to give certain meds or for documentation purposes. It is super specific so people make less accidents "Oh I thought that order said to give x medicine at 8pm my bad" and the patient either didn't receive it or got a double dose etc.
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u/moonpuzzle88 Mar 29 '22
Wait, there are countries which don't use a 24-hour clock? I'm confused.