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7th Prahara of the Day(2nd of the Night) (Ratri): 9pm to 12am (Ardha-Ratri): Sleep time or time for other activities. Typically, 1am is termed Ardha-Ratri, although there is no single definition of Ardha-Ratri which is used to imply the 'middle of the night'. 8th Prahara of the Day(3rd of the Night)(Ratri): 12am to 3am: Sleep time.
In terms of time usage, both the 24-hour clock and 12-hour clock are widely used in the country. The 12-hour notation is widely used in daily life, written communication, and is used in spoken language. The 24-hour notation is used in situations where there would be widespread ambiguity.
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").
Traditionally, night and day were each allocated four pahars, or "watches." The first pahar of the day (or din pahar) was timed to begin at sunrise, and the first pahar of the night (raat pahar) was timed to begin at sunset. [2] This meant that in the winter the daytime pahars were shorter than the nighttime pahars, and the opposite was true in ...
In the 24-hour time notation, the day begins at midnight, 00:00 or 0:00, and the last minute of the day begins at 23:59. Where convenient, the notation 24:00 may also be used to refer to midnight at the end of a given date [3] — that is, 24:00 of one day is the same time as 00:00 of the following day.
The difference between local solar time and mean solar time is given by the equation of time. The result is that the sun is as much as about 15 min. slow or fast compared to mean solar time, depending on the time of year. So, while the sun *does* cross the celestial meridian at 12:00 local solar time, it almost never does so at 12:00 standard time.
The day definitely does NOT begin at 12am... the day is divided by noon at the meridian... so am is ante meridiem (the time before midday) and post meridiem (the time after midday). Midnight is definitely after midday so is 12pm. 12am is noon. Using the 24hr clock, 0001 is 12:01am Marlarkey 23:47, 9 October 2024 (UTC)
The Roman day starting at dawn survives today in the Spanish word siesta, literally the sixth hour of the day (sexta hora). [ 11 ] The daytime canonical hours of the Catholic Church take their names from the Roman clock: the prime , terce , sext and none occur during the first ( prīma ) = 6 am, third ( tertia ) = 9 am, sixth ( sexta ) = 12 pm ...