Ante meridiem is commonly denoted as AM, am, a.m., or A.M.; post meridiem is usually abbreviated PM, pm, p.m., or P.M. Like many other sources, timeanddate.com uses “am” and “pm” when using the 12-hour format, but the other variants are equally correct and widely used.

Oct 3, 2019 · In formal writing, it is best to lowercase both a.m. and p.m. and retain the periods (as opposed to writing them AM/PM or am/pm); however, should you choose to use a different format, the most important rule is to be consistent throughout your piece.

WHAT (1340 kHz) is a commercial AM radio station in Philadelphia, Pennsylvania, United States. The station is owned by VM Broadcasting. It airs a Spanish-language contemporary hit radio format. It was one of the first radio stations in Philadelphia, going on the air in 1922. WHAT is powered at 1,000 watts.

The meaning of AM and PM is ‘Ante Meridiem’ and ‘Post Meridiem’, which means before noon or midday. We associate P.M. with the afternoon and evening. P.M. is an abbreviated term for ‘Post Meridiem,’ which implies afternoon or after midday.

The meaning of AM and PM is the simple abbreviation of Latin phrases. In particular, AM stands for ante meridiem, which translates into English as ‘before midday’. Meanwhile, PM is post meridiem and means in English ‘after midday’. These abbreviations are used to identify the time in the 12-hour clock format instead of using 24 hours.

Aug 11, 2021 · Sure, we know AM and PM generally mean "morning" and "evening" or "night," respectively. But what do AM and PM stand for, exactly?

Jun 1, 2024 · Understanding AM and PM. AM stands for “ante meridiem,” meaning before noon, and PM stands for “post meridiem,” meaning after noon. Noon, when the sun is highest in the sky, is neither AM nor PM. To avoid confusion, we use “12 noon” instead of “12 PM.” The 12-Hour Clock vs. the 24-Hour Clock

Dec 16, 2022 · The concept of a.m. and p.m. comes from the fact that ancient people used the convenient dark-light contrast of each 24-hour cycle to talk about what time it was: The sun told them what time it was in the day and the moon and stars did the same at night. The ancient Egyptians assumed day and night were of equal length.. As early as 3500 B.C.E. the ancient …

As we said above, AM stands for “ante meridiem” or before noon in Latin, so it is used to describe the first portion of the day – the first 12 hours. On the other hand, PM stands for “post meridiem” or after noon in Latin and it’s used to describe the second portion of the day – the final 12 hours.

Jan 3, 2025 · Ever wondered why we use the letters AM to signal morning and PM to describe the afternoon and evening? Here's everything you need to know about the tradition