Calendar
Information on the timetabling The basis of determining the calendar is the observation phases of the Moon and the Sun widower traffic after ellipticity In Muslim countries, is currently the basis for the calculation of these changes are the moon phases - the year of their last 12 lunar months with a length of 29 or 30 days. They are also so-called solar calendars. The basis for their calculations is the observation of the circulation of the Earth around the Sun. It takes 365 days 5 hours and 49 minutes. This is the so-called tropical year. Our calendar year is 12 months. But this is not accurate. The difference with the astronomical year is a time offset, in order to avoid misunderstandings. The currently widely used Gregorian calendar. This is a modification of Rome and the Julian calendar. This calendar was introduced gradually. No later than the eastern countries have accepted the order. For example, Russia only accepted it in 1918. Gregorian Calendar Pope Gregory XIII established. In the year 1582 attempts to reform it takes. Interestingly, for example, in the year 1582 passed the following Thursday 4 October will be Friday 15 October (to compensate for the difference created - 10 days). Certainly some of us also want to speed up the time so ...