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Is every year exactly divisible by 4 a leap year?
15-07-2012, 04:41 PM
Post: #1

Is every year exactly divisible by 4 a leap year?

Many people believe that every fourth year or every year exactly divisible by 4 is a leap year, but this is not true. This is because the Solar calendar, which is framed on the basis of Earth's revolution around the Sun for 365 and 1/4 days is approximate. The actual time taken for Earth to revolve around the Sun is 365.2422 days, i.e. 365 days 5 hours 48 minutes 45.9747 seconds.

Based on this, a standard year was considered as 365 days and the hours left every year were combined to obtain one more day, which was added to every fourth year to get a leap year.

It took hundreds of years to arrive at a fact that it did not solve the problem as it lead to and additional 3.12 days every 400 years due to a difference of 0.0078 days every year.

Owing to this Pope Gregory Clavius, suggested in 1582 that deducting 3 leap years every 400 years would easily solve the problem. Considering this, it was decided that leap years in the centuries 1600, 1700, 1800, 1900 and so on must be those divisible by 400 rather than 4.
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31-07-2013, 06:52 PM
Post: #2

RE: Is every year exactly divisible by 4 a leap year?

(15-07-2012 04:41 PM)swathi266 Wrote:  Many people believe that every fourth year or every year exactly divisible by 4 is a leap year, but this is not true. This is because the Solar calendar, which is framed on the basis of Earth's revolution around the Sun for 365 and 1/4 days is approximate. The actual time taken for Earth to revolve around the Sun is 365.2422 days, i.e. 365 days 5 hours 48 minutes 45.9747 seconds.

Based on this, a standard year was considered as 365 days and the hours left every year were combined to obtain one more day, which was added to every fourth year to get a leap year.

It took hundreds of years to arrive at a fact that it did not solve the problem as it lead to and additional 3.12 days every 400 years due to a difference of 0.0078 days every year.

Owing to this Pope Gregory Clavius, suggested in 1582 that deducting 3 leap years every 400 years would easily solve the problem. Considering this, it was decided that leap years in the centuries 1600, 1700, 1800, 1900 and so on must be those divisible by 400 rather than 4.
hey hiiii from where you find , the such kind of the information. If you research your own , then it is excellent one. But the leap year is based on the FEB which is 28 and 29 month, which is come after 4th year.

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25-09-2013, 01:26 PM
Post: #3

RE: Is every year exactly divisible by 4 a leap year?

(31-07-2013 06:52 PM)emdiworld Wrote:  
(15-07-2012 04:41 PM)swathi266 Wrote:  Many people believe that every fourth year or every year exactly divisible by 4 is a leap year, but this is not true. This is because the Solar calendar, which is framed on the basis of Earth's revolution around the Sun for 365 and 1/4 days is approximate. The actual time taken for Earth to revolve around the Sun is 365.2422 days, i.e. 365 days 5 hours 48 minutes 45.9747 seconds.

Based on this, a standard year was considered as 365 days and the hours left every year were combined to obtain one more day, which was added to every fourth year to get a leap year.

It took hundreds of years to arrive at a fact that it did not solve the problem as it lead to and additional 3.12 days every 400 years due to a difference of 0.0078 days every year.

Owing to this Pope Gregory Clavius, suggested in 1582 that deducting 3 leap years every 400 years would easily solve the problem. Considering this, it was decided that leap years in the centuries 1600, 1700, 1800, 1900 and so on must be those divisible by 400 rather than 4.
hey hiiii from where you find , the such kind of the information. If you research your own , then it is excellent one. But the leap year is based on the FEB which is 28 and 29 month, which is come after 4th year.
[/quote]
hi
this is not exactly correct as much i know after 4 year which is divisible by 4 is leap year in leap year February month will be 29th days.
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28-09-2013, 04:34 PM (This post was last modified: 28-09-2013 06:17 PM by careerholic.)
Post: #4

Is every year exactly divisible by 4 a leap year?

hi friends,,
I also want to share about leap day,,,,February 29 is a date that usually occurs every four years, and is called leap day.

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03-01-2014, 12:23 PM
Post: #5

RE: Is every year exactly divisible by 4 a leap year?

No , its not necessary. However most of the years divisible by 4 are leap years except 2000 , 2200 etc
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