In today's world there are different, all kinds of calendars.Their numbers are endless, and all of them know is virtually impossible.Some of them take as a basis for calculating the time of the interaction of the Sun with the Earth, and some - the Earth to the Moon.And, according to the results of the various systems of calculation errors, the number of days in a year may vary significantly.Despite what it is based calendar, none of them may not be accurate at 100% and give a precise answer to the question: "How many days a year?" And "How many days in a leap year?ยป
YearIt refers to generally accepted units of time.We know that the year can be equated to one complete revolution of the Earth around the Sun all.So how many days in a leap year?
Existing Gregorian and Julian calendar year has 365 days.However, the actual duration - 365 days and 6 hours.To align this shift, based on the computation of the Alexandrian astronomer it introduced the concept of leap year.The first leap year introduced during the reign of the Emperor Gaius Julius Caesar.Then was mistakenly added an extra day every three years, and only a few decades was regarded as a leap year, as planned, every fourth year.How many days in a leap year?As a result of the introduction of a leap year has 366 days total.And it was decided to add this day in the last month of the Roman calendar - February.
This innovation was adopted also the Gregorian calendar, but with one small amendment.Leap year is the year that is a multiple of 100 and 400. This extra day was introduced, as in the Julian calendar, the month of February.
In the Jewish calendar system, there is also the concept of leap year.But, unlike other calendar systems, here we are talking not about adding one extra day, and the addition of an extra month.This is due to the fact that the Jewish system do not rely on solar months, lunar on.As a result of these differences vary with the solar year, it accepted a year the number of days equal to the 11.To correct this difference, it was decided to introduce an additional, thirteenth month.The result is that the 19-year cycle on the calendar has 12 ordinary and 7 leap years.
And how many days of the year?This question is certainly asked all.Identify the specific number of days off and working days per year is not always easy.Their number depends on the number of officially declared public holidays and weekends, and holidays that were moved to the week for the reason that they have come for the weekend.
For calculation of the indicative number of working days should be the total number of days to subtract the weekend and transferred to the weekend holidays.
If you do not want to carry out calculations - subtract, add and is doing other manipulations with numbers, we will help you and answer your question.Performing the calculations, we get an average of about 250-270 days and about 90-120 days off a year.Thus, we give answers to common questions about how many days in a leap year or ordinary, we have to work.
