12.00 am The 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 1 11 am 2 The first hour period is designated as am. It runs from midnight to noon. The second period, marked pm, covers the 12 hours from noon to midnight. The abbreviations am and pm derive from Latin: AM = Ante meridiem: Before noon PM = Post meridiem: After noon. 3 is 12 am midnight 4 Owen Vickery Learn about the difference between am & pm as well as other keywords for telling the time. 12 o’clock: we all know there are two a day – one at lunchtime and one at night – but which one is 12am and which one is 12pm? That’s what we’ll be looking at in this article. 5 When is AM Tuesday? AM PM Time Format Explained? AM PM explained. Is noon 12AM or 12PM? Why are there 24 hours in a day? Decem Uncategorized Is AM Midnight or Noon? The AM PM 12 hour time format can be confusing. When is AM Tuesday? Is it midnight on Monday, Tuesday noon, or Tuesday midnight?. 6 For the first hour of the day ( to ), add 12 Hours, make it "AM" Examples: = AM, = AM From to , just make it "AM" Examples: = AM, = AM From to , just make it "PM" Examples: = PM, = PM From to , subtract 12 Hours, make it "PM". 7 10 pm 8 timersklokke er en konvensjon for oppdeling av døgnet som består av to perioder på 12 timer. 9 AM brukes altså for tiden fra midnatt til PM står for post meridiem og betyr «etter middag». 10 To convert 12 hour time to 24 hour time format we follow the steps below: If the time is between AM and AM, we subtract 12 hours. If the time is between AM and PM, 24 hour time is same as 12 hour time. If the time is between PM and PM, we add 12 hours to input time. 12 Hour Time to 24 Hour Time Conversion Table. 11