Surplus Three Days in 2000 Years

manesiro · science forum beginner Joined: 14 Jan 2006 Posts: 20

We know that Earth takes 365 days 5 hours 48 minutes and 46 seconds in
its one revolution round the Sun. Thus one Solar Year consists 365.2422
days. In 10000 years, there will be 3652422 days and in 2000 years
there must be 730484.40 days.
Historically, we know that
1. In Julian calendar, every 4th year was a leap year having 366 days.
Thus total numbers of days in each century were 36525.
2. In year 1582, 10 days were deleted from the month of October.
3. Year 1600 was a leap year having 366 days.
4. Years 1700,1800 and 1900 were having 365 days each.
5. Year 2000 was a leap year.
Calculating days from first day of first century to 31-12-1500
== 36525*15
=547875
The numbers of days from 1-1-1501 to 31-12-1600 were 36515.
The numbers of days from 1-1-1601 to 31-12-1700 were 36524.
The numbers of days from 1-1-1701 to 31-12-1800 were 36524
The numbers of days from 1-1-1801 to 31-12-1900 were 36524
The numbers of days from 1-1-1901 to 31-12-2000 were 36525
Total numbers of days from 1-1-01 to 31-12-2000 are 730487

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