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20 paź 2023 · AM stands for ante meridiem and PM stands for post meridiem. AM and PM both refer to a 12-hour period of each day. AM refers to the first 12-hour period while PM refers to the second. Twelve-hour time uses AM and PM to distinguish between the first half of the day and the second half.
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 post meridiem, translating to "after midday"). [1][2] Each period consists of 12 hours numbered: 12 (acting as 0), [3] 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11.
PM (also written P.M., pm, p.m.) is an abbreviation that stands for post meridiem, which is Latin for "after midday." It includes times that we may refer to as afternoon, evening, or night. The use of the abbreviation PM or AM is necessary when describing time using a 12-hour clock.
Adding to this challenge there are two formats of time, a 12-hour format and a 24-hour format. Time has units of hours, minutes, seconds, and is expressed in AM (Anti Meridian) or PM (Post Meridian).
19 lip 2024 · AM and PM are abbreviations used to distinguish the two 12-hour blocks in a day in the 12-hour clock system. AM stands for “Ante Meridiem,” meaning “before midday,” and covers the hours from midnight to noon.
12-hour clock, time convention that splits a 24-hour day into two equal 12-hour periods. The first is referred to as am, which stands for ante meridiem, “before midday” in Latin, while the second is referred to using pm, meaning post meridiem, or “after midday.”
The 12-hour clock system uses the digits 1 through 12 followed by am or pm to denote each of the 24 hours of the day. While 2 AM is two hours after midnight and 10 PM is two hours before midnight, 6 AM and 6 PM are respectively early in the morning and late in the evening.
