See what “365 year” is in other dictionaries. Why are there leap years? How many working days are there in a year? And how many days off are there in a year?

How many days are there in a year: 364, 365 or 366? and got the best answer

Answer from Djdf[guru]
There are not 364 days, 365 days, or 366 days in a year. The number of days (days) in a year is not an integer. A year lasts slightly longer than 365 days. To compensate for this lack of frequency, people came up with the idea of ​​making the so-called calendar every four years. Leap year with 366 days. and in other years 365.
No. A year lasts 365.25 days.

Reply from Flora_s (I love...)[newbie]
365 days


Reply from Kero$IN[active]
oh... I already forgot)))
365


Reply from Oliya Malysheva[guru]
Usually 365 days, but in a spring year there are 366 (these were the years 2000, 2004, 2008, 2012...)


Reply from Akv@m@rinchik[newbie]
depending on which one?


Reply from Ivan Spiridonov[guru]
A year has 365 days of revolutions around its axis. But in a year (in New Year's Eve for example) if we take it, the center of the earth does not reach 6 hours from the place where we met the last New Year. For 4 years, the day accumulates - February 29th.


Reply from Vitaly Lesin[guru]
There shouldn't be a whole number of days in a year. Or do you think that the Earth’s equator and its orbit are connected by teeth?


Reply from Constriction Engineer[guru]
Duration:
346.620047 days is a draconic year, the period of time after which the Sun returns to the same node of the lunar orbit.
353, 354 or 355 days - the duration of non-leap years in some lunisolar calendars.
354.37 days - lunar year, 12 lunar months; average length of the year in lunar calendars.
365 days is a non-leap year in many solar calendars; 31,536,000 s.
365.242199 days - the average tropical year (the period of time averaged over all points of the ecliptic during which the Sun returns to its previous position relative to the ecliptic and the earth's equator) for the epoch of 2000.
365.24220 days is the average tropical year for the epoch 1900.0.
365.24222 days is the average length of a year in the New Julian calendar.
365.24(24) days is the average length of a year in the Iranian calendar developed by Omar Khayyam.
365.2424 days is the average interval between the two vernal equinoxes for the epoch of the year 2000.
365.2425 days (exactly) is the average length of a year in the Gregorian calendar.
365.25 days (exactly) - Julian year, the average length of a year in the Julian calendar; equal to exactly 31,557,600 s.
365.2564 days - sidereal (sidereal) year; the period of revolution of the Earth around the Sun relative to the fixed stars.
365.259641 days is an anomalistic year, the period of time between two successive passages of the Earth through perihelion.
366 days is a leap year in many solar calendars; 31,622,400 pp.
383, 384 or 385 days is the length of a leap year in some lunisolar calendars.
383.9 days - 13 lunar months; leap year in some lunisolar calendars.


Reply from Yulia Malyutina[newbie]
there are 365 or 366 days in a year.


Reply from Amina Alikhanova[newbie]
365 days


Reply from Maria Yastrebova[active]
A normal year has 365 days, and a leap year has 366.


Reply from Maria Sukhanova[newbie]
In normal 365 and in leap year 366


Reply from Adel Amirova[newbie]
One year lasts 365 days, or if it is a leap year, 366 days.
A leap year is a year in which February lasts not 28 days but 29 days.


Reply from Anna Rybnik[newbie]
365


Reply from Sasha Grinev[active]
346


Reply from Anna Savchenko[newbie]
.


Reply from Ivan Rudskoy[newbie]
365, in leap days 366


Reply from Sasha Samoilov[newbie]
there are 365,366 days in a year

First a note. Not every 4th year is a leap year. We'll explain why later.

A normal year has 365 days. A leap year has 366 days - a day more, due to the addition of an additional day under the number 29 to the month of February, as a result of which those born on this day experience certain difficulties in celebrating their birthday.

A year is the time it takes for planet Earth to complete one revolution around the Sun in relation to the stars (apparently measured as the interval between two successive passages of the Sun through the vernal equinox).

A day (or often in everyday speech - a day) is the time during which the Earth makes one revolution around its axis. As you know, there are 24 hours in a day.

It turns out that a year does not fit an exact number of days. There are 365 days, 5 hours, 48 ​​minutes and 45.252 seconds in a year. If a year is taken to be equal to 365 days, then it turns out that the Earth in its orbital movement will not “reach” the point at which the circle “closes”, i.e. to get to it you need to fly in orbit for another 5 hours, 48 ​​minutes and 45.252 seconds. These extra approximately 6 hours over 4 years will just be collected into one additional day, which was introduced into the calendar to eliminate the backlog, receiving every 4th year leap year- a day longer. He did this on January 1, 45 BC. e. Roman dictator Gaius Julius Caesar, and the calendar has since become known as Julian. In fairness, it must be said that Julius Caesar only introduced by authority new calendar, and it was, of course, astronomers who calculated and proposed it.

The Russian word "leap year" comes from the Latin expression "bis sextus" - "second sixth". The ancient Romans counted the days of the month remaining until the beginning of the next month. So February 24th was the sixth day until the beginning of March. In a leap year, an additional, second (bis sextus) sixth day was inserted between February 24 and February 25. Later this day began to be added to the end of the month, February 29.

So, according to the Julian calendar, every 4th year is a leap year.

But it is easy to notice that 5 hours, 48 ​​minutes and 45.252 seconds are not exactly 6 hours (11 minutes 14 seconds are missing). Of these 11 minutes and 14 seconds, over 128 years, another extra day will “run up.” This was noticed from astronomical observations by the shift of the day of the vernal equinox, relative to which they are calculated church holidays, in particular Easter. By the 16th century the lag was 10 days (today it is 13 days). To eliminate it, Pope Gregory XIII carried out a calendar reform ( Gregorian calendar), according to which not every 4th year was a leap year. Years divisible by one hundred, i.e. ending with two zeros, were not leap years. The only exceptions were years divisible by 400.

So, leap years are years: 1) divisible by 4, but not by 100 (for example, 2016, 2020, 2024),

Note that Russian Orthodox Church refused to switch to the Gregorian calendar and lives according to the old Julian calendar, which is 13 days behind the Gregorian. If the church continues to refuse to switch to the generally accepted Gregorian calendar, then in a few hundred years the shift will become such that, for example, Christmas will be celebrated in the summer.

Years 369 BC e. · 368 BC e. · 367 BC e. · 366 BC e. 365 BC e. 364 BC e. · 363 BC e. · 362 BC e. · 361 BC e. Decades 380... ... Wikipedia

365 (number)- 365 three hundred sixty-five 362 · 363 · 364 · 365 · 366 · 367 · 368 Factorization: Roman notation: Binary: 101101101 Octal: 555 Hexadecimal: 16D ... Wikipedia

Year- Year is a unit of time, in most cases approximately equal to the period of revolution of the Earth around the Sun. Contents 1 Etymology 2 Astronomy ... Wikipedia

year- a (y), prev. in the year, about the year; pl. years and years, years and years; m. 1. pl. birth: years A unit of chronology, a period of time equal to the period of revolution of the Earth around the Sun and containing twelve calendar months counted from the first of January;... ... Encyclopedic Dictionary

YEAR- husband. continuation of time, in which the sun, with its imaginary flow, its course, returns to the same point; the time the earth flows around the sun, 12 months, or 52 weeks with one or two days. Tropical, true, solar or astronomical... ... Dictionary Dahl

YEAR- a period of time approximately equal to the period of revolution of the Earth around the Sun. In astronomy, there are: 1) a sidereal (sidereal) year, corresponding to one apparent revolution of the Sun across the celestial sphere relative to the fixed stars; amounts to... ... Big Encyclopedic Dictionary

YEAR- YEAR, years, plural. years and years, years, husband. 1. A unit of chronology, a period of time corresponding to the period of revolution of the earth around the sun. Astronomical year (365 days, 5 hours, 48 ​​minutes, 51 seconds). Sidereal year (365 days, 6 hours, 9 minutes, 10 seconds).... ... Ushakov's Explanatory Dictionary

YEAR- a period of time corresponding to the period of revolution of the Earth around the Sun. Tropical G. the period of time between two consecutive. the passage of the Sun through the vernal equinox is equal to 365.242 sr. solar days, i.e. equal to 31556925.9747 ... Physical encyclopedia

YEAR OF STAR, YEAR OF SIDERIS- the period of time during which the Sun, by its own movement, describes a complete circle of 360° along the ecliptic. A sidereal year contains 365.25637 days, or 365 days. 6 hours 9 minutes 9.6 sec. Samoilov K. I. Marine dictionary. M.L.: State Military... ... Naval Dictionary

year- noun, m., used. max. often Morphology: (no) what? year, what? year, (see) what? year, what? year, about what? about the year; pl. What? years and years, (no) what? years and years, what? years, (see) what? years, what? for years, about what? about years 1. Year is a unit... ... Dmitriev's Explanatory Dictionary

Books

  • 365 Best Places to Go Today, Baxter S.. “365 Places to Go Today” is a colorful calendar book that contains the most unusual and vibrant events from around the world. .. Inside you will find amazing adventures for everyone... Buy for 1125 RUR
  • 365 scientific experiments for every day, Bolushevsky S.V., Yakovleva M.A.. 365 scientific experiments Children and their parents are welcome for the whole year! By experimenting, the child will get answers to all his “whys” and learn a lot about the world around him. Exciting experiences...

A year is one of the generally accepted units of time. Typically, a year is approximately equal to one revolution of the Earth around the Sun. How many days are there in a year?

In the Gregorian and Julian calendars, the solar year lasts 365 days 6 hours 13 minutes 52.6 seconds.

How many days are there in a leap year?

Every fourth year is considered a leap year and has one more day than usual, namely 366 days. This is due to the fact that over four years the extra 6 hours and 13 minutes are “gained” for the whole day. This adjustment allows you to restore the accuracy of the calendar and solar calendars.

How many working days are there in a year? And how many days off are there in a year?

The exact number of working days and weekends per year cannot be calculated. It depends on the number of official holidays, weekends and holidays that were moved to weekdays due to the fact that they fell on weekends.

Thus, on average there are 250-270 working days and 90-120 days off per year.

Theory of absolute time

The secret of time is that per day the Earth not only makes one revolution around its axis, but also travels a distance equal to 91.3/90 degrees around the sun. If the earth makes one revolution around the sun in 365.2 days equals 8764.8 hours, if you count the day without counting the movement around the sun, you get 24 hours from the ship 365, 2 multiplied by 24 is equal to 365.2 multiplied by 4.8 divided by 0, 2 since 0.2 days are equal to 4.8 hours, the rotation of the earth around its axis is equal to 20 hours and 4.8 hours a day around the sun, we do not notice 0.8 hours a day and cannot calculate it due to the synchronicity of the coincidence of movement around its axis and around the sun. But the 0.8 hours that we don’t count per day in a day don’t go anywhere, and as a result, we have to add one day every four years because unnoticed time exists and it doesn’t go anywhere. but there is an inaccuracy of 0.4 days per year. A year is equal to 8764.8 hours, in four years and one day, in five years the year becomes 1827 days plus one day minus 0.8; as a result, in fifty years it is 10 days minus 8, in 500 years this is already an extra 20 days.
By dividing three circles into 360 degrees, you can determine the trajectory of any planet with an accuracy of up to a second.

Movements around an axis

360 degrees equals 24 hours and that's 100 percent
15 degrees equals 1 hour and equals 3.6 percent
72 degrees equals 4.8 hours and equals 20 percent
1 degree is equal to 4 minutes and is 0.27777777777777... percent

Movements around the sun

365.2 days are equal to 360 degrees and that is 100 percent
1.0144444... days are equal to one degree and amount to 0.277777777 percent
91.3 days divided by 90 degrees is 25 percent

Comparing everything together, it turns out that 0.8 chacha per day is time that is unnoticed, but it does not disappear anywhere; it is added every month with a difference of days. 1.3 days are added in each season, 5.2 days are added per year,

24 times 60 equals 20 times 72

The exact speed and time of movement of the earth around the sun can be calculated from solar eclipse it is relative to the circumference of the sun to the distance to the earth and the circumference of the moon to the distance from the moon to the earth during the period of the eclipse, taking into account the rotation of the earth around its axis in the opposite direction.

The riddle of the running of time is similar to the riddle of the running of Achilles and the tortoise. Achilles could not overtake the tortoise in time; while he was trying to catch up with it, it moved and was already in another place.

The earth moves around the sun strictly in a circle; if it moved along an ellipse, there would be two winters and two summers in a year and unpredictable weather and climate. The only thing is that it moves around the sun at a degree relative to the equator and rotates around its axis strictly along the equator. Out of every six seconds, one second is the movement of the Earth around the Sun.