Is that 12am or 12pm. Is it the night between Monday and Tuesday or between Tuesday and Wednesday ? Some will say midnight is 12am, and therefore that midday (or noon) is 12pm. …

2023年11月26日 · PM（Post Meridiem） 意为 "中午到午夜之前"，通常表示下午和晚上时间，从中午（12:00）到午夜（24:00）。 而"Ante Meridiem"和"Post Meridiem"则都来自 拉丁语。 …

2021年3月2日 · When people do use a.m. and p.m. to refer to noon and midnight, they generally use “12 p.m.” for noon and “12 a.m.” for midnight. Since this is both confusing and illogical, …

AM means before noon. This is the 12-hour period from midnight to noon. PM means after noon. It covers the 12 hours from noon to midnight.

12小时制将一天中的24小时分为两个时段，每个时段都有12小时。 第一个12小时时段指定为am（上午）：从午夜开始到中午。 第二个时段标为pm（下午），从中午到午夜。 The …

The 12-hour clock is a time convention in which the 24 hours of the day are divided into two periods: a.m. (from Latin ante meridiem, translating to "before midday") and p.m. (from Latin …

What does am and pm mean? The 12-hour clock divides the 24-hour day into two periods. am stands for the Latin ante meridiem, translating to "before midday". This is the time before …

中午 12 点通常叫做 12:00 pm 。 不过，为了避免混淆，美国国家标准与技术研究所 ( National Institute of Standards and Technology，NIST )指出： meridiem 就是 noon ， 中午十二点 应该 …

Although it is common to see noon expressed as 12:00 p.m., it is actually incorrect. So the next time one of your friends sends you an email saying, “Let’s meet at 12:00 p.m. noon for lunch.” …

2007年1月16日 · Since “p.m.” stands for “post meridiem” (“after noon” in Latin), can 12 p.m. be used for noon itself? A: The simple answer is yes, but we’d advise against it. By convention, …