Friday 1 March 2024

*More about Leap Year :*

 *More about Leap Year :*


All of us know that when a year is divisible by 4 it is known as leap year. That way this year 2024 is a leap year and this month February will have 29 days. 

This leap year correction is required because the number of days in a year is not 365 and it is actually 365.25. 
This extra 0.25 adds up to one day (0.25 x 4 = 1 day) in every 4 years. This one day is adjusted in the leap year. 

But it does not end with this. 
The number of days in a year is not 365.25 also and it is actually 365.24 only. This 0.01 difference adds up to 1 day (0.01 x 100 = 1 day) in every 100 years. 
*Hence every century year will skip one leap year, ie the century years 2100, 2200, 2300 though divisible by 4 are NOT leap years.* 

Now hold your breath, it does not end with this too. The number of days in a year is not 365.24 also and it is actually 365.2425. This additional 0.0025 adds up to 1 day (0.0025 x 400 = 1 day) in 400 years. 
Hence the year that is divisible by 400 viz. 1600, 2000, 2400 and so on will again be a leap year. 

In the year 2000 the month February had 29 days because it was a leap year. Everyone thought the year 2000 was a normal leap year because it was divisible by 4. But it was not so. 2000 was a special leap year because it was divisible by 400. This will happen only once in 400 years. 

Our children or grand children will see that the year 2100 is not a leap year. 

*To be more precise the accurate number of days in a year is 365.2422.*

So still there is a difference of 0.0003

*But we will stop with this.*
☺️

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