There is no possibility of occurrence of error in the moon calendar.
Calendars that are run by
observations reflect all natural factors, so they are unlikely to be wrong ,
whereas calendars run based on predetermined average duration are not
reflective of natural factors, therefore, they are likely to undergo a great deal
of error, as the last international calendar called Julian underwent ten-day error which was corrected by Pope Gregory XIII in 1582 A.D.
The question that arises is if the moon calendar is so easy to use,
why is it because today the internationally recognized international calendar
is made on the basis of sun and is used by people around the world tirelessly?
The
only reason is that its months are always seasonal. In order to maintain the
same qualities of the international calendar, the current international
calendar of October 4 was replaced by the date of October 14, in the order of
the Pope Gregory XIII in 1582 A.D. In fact, prior to that date, the average
length of the seasonal year was recognized as 365.25 days. So to achieve this
average, every three years out of every four years were counted of 365 days
each and every fourth year was counted of 366 days. And the 4th year
was named as leap year. But this scheme failed because the length of the
seasonal year equals 365.2422 days instead of 365.25 days. That's why there