# how to calculate leap year

Finding a year is leap or not is a bit tricky. A year that is divisible by 4 is known as a leap year.

If it is divisible by 100, then it should also be divisible by 400. She holds a JD from the University of Arkansas School of Law. See disclaimer. The Excel YEAR function returns the year component of a date as a 4-digit number.

In the solar calendar year there will be one more day. The Earth rotates about 365.242375 times each year, even though a normal year is only 365 days.

More specifically, they occur in any year that can be evenly divided by the numeral 4. 2015, 2016, etc. Finally, MONTH simply extracts the month from the result provided by DATE, which is compared to 2 using the equal sign. Leap days will be February 29th of the calendar year. 3. Regardless of how old we are, we never stop learning.

Let's see how to we can create a program to find if a year is leap or not.

Based on the Word Net lexical database for the English Language. The Earth rotates about 365.242375 times each year, even though a normal year is only 365 days. We generally assume that if a year number is evenly divisible by 4 is leap year. Since it's not divisible by 400, 1900 is not a leap year. Except this, all other years evenly divisible by 4 are leap years. How to Calculate Leap Year?

However, years divisible by 100 are not leap years while those divisible by 400 are. So, 2000 is a leap year. A year is a leap year if −, If it is divisible by 100, then it should also be divisible by 400. A year is a leap year if − It is evenly divisible by 100. © 2020 Leaf Group Ltd. / Leaf Group Media, All Rights Reserved.

Get over 200 Excel shortcuts for Windows and Mac in one handy PDF. For example: 2012, 2004, 1968 etc are leap year but, 1971, 2006 etc are not leap year.

Leap Year Calculator

After 2016, upcoming leap years will be 2020, 2024, 2028 and so on, but 2100 is an exception to this rule. This is because every 100 years, the Earth’s rotations do not add up to an extra day: .24 extra days per year multiplied by 100 years leaves you with only .0024 to make up, which is not a full day.

Our goal is to help you work faster in Excel. Easily determine if a year is a leapyear or not. For example, 1600 and 2000 are leap years but 1700, 1800 and 1900 are not leap years. One year has the length of 365 days, 5 hours, 48 minutes and 45 seconds.This is hard to calculate with, so a normal year has been given 365 days and a leap year 366 days.In leap years, February 29th is added as leap day, which doesn’t exist in a normal year. It is a year containing one additional day added to keep the calendar year synchronized with the astronomical year. 2016 is also divisible by 4, so 2016 will be a leap year too.

In the formula, year is passed into date unchanged, along with 2 for month (February) and 29 for the day.

But, if we change year to 2000, it is divisible by 4, is a century year, and is also divisible by 400. Classroom is the educational resource for people of all ages. Conditions for Leap Year Calculation: → Check the year is divisible by 4.

), modify the formula as follows: If the formula above seems to "clever" and you want a more literal solution, you can test if a year contains 366 days instead with this formula: This formula generates two dates, then subtracts January 1st of the given year from January 1st of the next year. In leap years, February has 29 days, so the DATE function will simply return the date February 29 of the year. For example, 2000 was a leap year, even though it was divisible by 100, because in the Earth’s rotation, we gain one day every 400 years, or 0.0025 days per year, and we need to add that extra day to the calendar. Generally, leap years happen every four years. If you just want to check if a year (i.e.

See details here. Similarly, 1200, 1600, 2000, 2400 are leap years but, 1700, 1800, 1900 etc are not. You'll also learn how to troubleshoot, trace errors, and fix problems.

The Excel DATE function creates a valid date from individual year, month, and day components.

But if the year can be divided evenly by 400, it will be a leap year. But it is not the only case. For example, we had a leap year in 2012, as 2012 is divisible by 4. You can use the MONTH function to extract a month number from a date into a cell, or to feed a month number into another function like the... Formulas are the key to getting things done in Excel.

Hi - I'm Dave Bruns, and I run Exceljet with my wife, Lisa.

In this accelerated training, you'll learn how to use formulas to manipulate text, work with dates and times, lookup values with VLOOKUP and INDEX & MATCH, count and sum with criteria, dynamically rank values, and create dynamic ranges. Finding a year is leap or not is a bit tricky. In the example shown, the formula in cell C5 is: The core of this formula is the DATE function, which will automatically adjust to month and year values that are out of range.

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If you want to test whether the year of a certain date is a leap year, you can use a formula that uses the MONTH, YEAR, and DATE functions.

Read more. Wonderful work! A native of Nashville, Tenn., Dannelle F. Walker is an education lawyer and policy maker.

Lots of ways to test for leap year (Chandoo), I would like just to thank you for these amazingly clear explanations! but 2400 and 2800 are leap years. In non-leap years however, DATE will return the date March 1 of the year, because there is no 29th day and DATE simply rolls the date forward into the next month. The DATE function is useful for assembling dates that need to change dynamically based on other values in a worksheet.

Similarly, 2100, 2200, 2300, 2500, 2600, 2700, 2900 and 3000 are not leap years.

Her areas of expertise include teacher liability, educator ethics, and school operations. In the formula, year is passed into date unchanged, along with 2 for month (February) and 29 for the day. The Excel MONTH function extracts the month from a given date as number between 1 to 12.

In this program below, user is asked to enter a year and this program checks whether the year entered by user is leap year or not. A leap year contains one additional day that is added to keep the calendar year synchronized with the astronomical year.

We generally assume that if a year number is evenly divisible by 4 is leap year. In leap years, February has 29 days, so the DATE function will simply return the date February 29 of the year. The year 2100, for example, won't "leap."

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