I say 2100 is not a leap year? can anybody give the reason.

Year numbers ending in 00 must also be evenly divisible by 400 in order to be decide for leap year

Hey Brijesh, thanks for your explanation, according to gregorian calender the 2100 is not a leap year, but 2000, 1600, ... are leap years.

Originally Posted by Harry1981

Hey Brijesh, thanks for your explanation, according to gregorian calender the 2100 is not a leap year, but 2000, 1600, ... are leap years.

yes, you are right, but concept is same.

2000 and 1600 give remainder "0" on dividing by 400, so they are leap year.

whereas 2100 not.

no i don't think so

Hi Atanu,

The year 2100, 2200, 2300 were not leap years. See the below mentioned points regarding Leap Year.

- The Gregorian calendar is designed to keep the vernal equinox on or close to March 21, so that the date of Easter (celebrated on the Sunday after the 14th day of the Moon that falls on or after 21 March) remains correct with respect to the vernal equinox.
- The vernal equinox year is currently about 365.242375 days long.
- The Gregorian leap year rule gives an average year length of 365.2425 days.

This marginal difference of 0.000125 days means that in around 8,000 years, the calendar will be about one day behind where it should be. But in 8,000 years, the length of the vernal equinox year will have changed by an amount which can not be accurately predicted. Therefore, the current Gregorian calendar suffices for practical purposes.

In case if you need to get more details you check this Link for details regarding Gregorian calendar.

Hi guys sounds great,
Your solutions are too technical
the simplest solutions is when u add the digits u get an odd number so it is not a leap year
And also i am not saying that all the years that end with the even sum are leap year

this is one of the simplest way to find whether a year is a leap year or not

hi frndz,

always a century year should be divisible by 400 to be a leap year.

Hi everybody
We get a leap year every 4 years. But over a span of 100 there will be an excess of 1day.
So 1day is reduced, but this reduction of 1day in every 100 years makes a day less over a span of 400 years. So again a day is added to make it a leap year.
As 2100 is not divisible by 400 it is not a leap year whereas 2000, 1600 are leap years.

thanq harvey for ur logic

ya the answer is that 2100 should be divisible by 400 but here it fails
hence 2100 is not a leap year

hi jain and sridharganesan

Excellent explanation i got your point

Thanks
Deepasree