AM（Ante Meridiem）意为"午夜到中午之前"，通常表示上午时间，从午夜（00:00）到中午（12:00）。 PM（Post Meridiem）意为"中午到午夜之前"，通常表示下午 ...

Both a.m. and p.m. stands for the Latin phrases “ante meridiem,” which means before midday, and “post meridiem,” meaning after midday. In countries such as the US and Canada, each day is ...

What exactly A.M and P.M stands for? AM and PM are derived from Latin language and are used as abbreviations for the terms Ante Meridiem and Post Meridiem. AM is used to determine the time from ...