AM and PM full form: Back to timely, people use darkness and light contrast to figure out the time in a 24-hour cycle. The position of the sun on that day helps determine the working hours and positions of the moon and stars at night. The ancient Egyptians once thought that the duration of the day and night was equal.
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After some time, watchmakers used circular models to build their new technology. The first mechanical clock was invented in Europe against medieval clock towers, a 24-hour device that is different from the traditional method.
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By the 14th century, the 24-hour device was replaced by 12-hour faces to save space and enhance the readability of the pocket watch carrier. Moving forward, watchmakers began to embrace AM and PM, although these terms didn’t really have to do with astronomical institutions.
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Source: Cuemathhowever, by the late 19th century, many countries and military institutions began discussing time based on the 24-hour clock. Most countries use 24-hour clocks, except Australia, Canada and the Philippines. However, the old habits have gone hard and most people, even those from these countries, may still use AM and PM abbreviations. What exactly does AM and PM represent?
Complete form, AM and PM
AM -ANTE MERIDIEM
PM-Meridum
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What does AM and PM stand for?
AM and PM are derived from Latin and are used as abbreviation for the terms Meridiem and Meridiem terms. AM is used to determine the time from midnight to 11:59 noon and to indicate the time from 12 noon to 11:59 midnight using PM.
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There are 24 hours a day, further divided into hours, minutes and seconds. For example, 9:35 means 9 hours and 35 minutes. This period of time can be displayed in two ways, through a 24-hour clock, the other is AM and PM
Interesting fact: The 24-hour clock is also known as the “military time” of the United States and Canada because the military of these countries used it, even if the average people used the 12-hour course.
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Source: https://dinhtienhoang.edu.vn
Category: Optical Illusion