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

Answer from Djdf[guru]
A year is not 364 days, not 365 days, and not 366 days. The number of days (days) in a year is not an integer. A year is somewhat longer than 365 days. To compensate for this non-recurrence, people came up with the idea of ​​doing the so-called calendar every four years. leap year with 366 days. and in other years 365.
No. A year lasts 365.25 days.

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

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

Answer from Yulia Malysheva[guru]
365 days usually, but in a leap year 366 (these were the years 2000, 2004, 2008, 2012 ...)

Answer from Aqua@m@rinchik[newbie]
depending on which one?

Answer from Ivan Spiridonov[guru]
A year is 365 days-turns around its axis. But for a year (in new year's eve for example) if you take it, then the center of the earth does not reach 6 hours to the place where you met the last New Year. For 4 years, a day is accumulated - February 29.

Answer from Vitaly Lesin[guru]
There should not be a whole number of days in a year. Or do you think that the Earth's equator is connected with its orbit by teeth?

Answer from Constructor engineer[guru]
Duration:
346.620047 days - a draconian year, a period of time after which the Sun returns to the same node of the lunar orbit.
353, 354 or 355 days are the length of non-leap years in some lunisolar calendars.
354.37 days - lunar year, 12 lunar months; the 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 time interval 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 2000 epoch.
365.24220 days is the mean tropical year for epoch 1900.0.
365.24222 days is the average length of a year in the New Julian calendar.
365.24 (24) days - the average length of the year in the Iranian calendar, developed by Omar Khayyam.
365.2424 days is the average interval between two spring equinoxes for the epoch 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; is exactly 31,557,600 s.
365.2564 days - sidereal (stellar) year; the period of revolution of the earth around the sun relative to the fixed stars.
365.259641 days - an anomalistic year, the time interval between two successive passages of the Earth through perihelion.
366 days is a leap year in many solar calendars; 31 622 400 s.
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.

Answer from Yulia Malyutina[newbie]
There are 365 or 366 days in a year.

Answer from Amina Alikhanova[newbie]
365 days

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

Answer from Maria Sukhanova[newbie]
In ordinary 365 and in leap year 366

Answer from Adela Amirova[newbie]
One year is 365 days long, or if it's a leap year, 366 days.
A leap year is a year in which February is 29 days instead of 28 days.

Answer from Anna Rybnik[newbie]
365

Answer from Sasha Grinev[active]
346

Answer from Anna Savchenko[newbie]
.

Answer from Ivan Rudskoy[newbie]
365, in leap year 366

Answer from sasha samolov[newbie]
365.366 days in a year

First a note. Not every 4th year is a leap year. Why - we will explain later.

In a normal year there are 365 days. In a leap year, there are 366 days - one day more, due to the addition of an additional day at 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 during which the planet Earth makes 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 the year does not fit an even number of days. There are 365 days, 5 hours, 48 ​​minutes and 45.252 seconds in a year. If the year is taken 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. it takes another 5 hours, 48 ​​minutes and 45.252 seconds to fly in orbit. These extra about 6 hours in 4 years will just be collected in 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 been called Julian. In fairness, it must be said that Julius Caesar only introduced new calendar, but it was calculated and proposed, of course, by astronomers.

The Russian word "leap" comes from the Latin expression "bis sextus" - "the second sixth". The ancient Romans counted the days of the month until the beginning of the next month. So the day of February 24 was the sixth before 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 increase towards the end of the month, on February 29.

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

But it is easy to see that 5 hours, 48 ​​minutes and 45.252 seconds is not exactly 6 hours (11 minutes 14 seconds are missing). Of these 11 minutes and 14 seconds in 128 years, another extra day will “run in”. This was noticed from astronomical observations on the shift of the day of the vernal equinox, with respect to which they are calculated church holidays especially Easter. By the 16th century, the backlog was 10 days (today it is already 13 days). To eliminate it, Pope Gregory XIII reformed the calendar ( Gregorian calendar), according to which not every 4th year was a leap year. There were no leap years, multiples of one hundred, that is, ending in two zeros. 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 of the 380s ... ... 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 Astrono ... Wikipedia

year- a (y), preposition. in a year, about a year; pl. years and years, years and years; m. 1. pl. genus: 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, deducted from January 1; ... ... encyclopedic Dictionary

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

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 (stellar) year, corresponding to one apparent revolution of the Sun in the celestial sphere relative to fixed stars; makes up…… Big Encyclopedic Dictionary

YEAR- YEAR, years, pl. 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). ... ... Explanatory Dictionary of Ushakov

YEAR- the period of time corresponding to the period of revolution of the Earth around the Sun. Tropical G. time interval 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

STAR YEAR, SIDERAL YEAR- the period of time during which the Sun with its own movement describes a full 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 vocabulary. M. L .: State Military ... ... Marine Dictionary

year- n., m., use. 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 than? years, (see) what? years what? years, about what? about years 1. A year is a unit… … Dictionary of Dmitriev

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• 365 scientific experiments for every day, Bolushevsky S.V., Yakovleva M.A.. 365 scientific experiments for the whole year waiting for children and their parents! By experimenting, the child will receive answers to all his "why" and learn a lot about the world around him. Fascinating experiences…

The year is one of the most commonly used units of time. Usually a year is approximately equal to one revolution of the Earth around the Sun. How many days in a year?

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

How many days are in a leap year?

A leap year is considered every fourth year and it has a day more than usual, namely 366 days. This is due to the fact that in 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 in a year? And how many days off a year?

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

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

The theory of absolute time

The secret of time lies in the fact that during the day the Earth makes not only one orbit around its axis, but also passes a distance equal to 91.3/90 degrees around the sun. If the earth makes one revolution around the sun in 365.2 days equal to 8764.8 hours, if you count the day without counting the movement around the sun, you get 24 hours from the court 365, 2 times 24 is 365.2 times 4.8 divided by 0, 2 since 0.2 days are equal to 4.8 hours from the ship, the rotation of the earth around its axis is 20 hours and 4.8 hours a day around the sun, we do not notice 0.8 hours a day and cannot calculate for the synchronism of the coincidence of movement around its own axis and around the sun. But 0.8 hours that we do not count per day in a day do not go anywhere, as a result, we have to add one day every four years because unnoticed time exists and it does not go anywhere. but there is an inaccuracy of 0.4 days per year. A year is equal to 8764.8 hours, for four years and one day, for five years it turns out already in a year 1827 days plus one day minus 0.8, as a result, in fifty years it is 10 days minus 8, for 500 years this is already an extra 20 days.
By dividing three circles by 360 degrees, you can determine the trajectory of any planet to the nearest second.

Movement around the 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 is 20 percent
1 degree equals 4 minutes and equals 0.27777777777777... percent

Movement around the sun

365.2 days equal 360 degrees and that's 100 percent
1.0144444... a day equals one degree and equals 0.277777777 percent
91.3 days divided by 90 degrees is 25 percent

Comparing everything together, it turns out that 0.8 hours per day is a time that is invisible, but it does not disappear anywhere, it adds up in every month with a difference in days. 1.3 days are added in every season of the year, 5.2 days are already added in a year,

24 times 60 is 20 times 72

The exact speed and time of the earth's movement 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 run of time is similar to the riddle of the run of Achilles and the tortoise Achilles could not outrun 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 in an ellipse in a year there would be two winters and two summers 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.