# Python Program to Check Leap Year

A leap year is a calendar year in which an additional day is added to February month. In a leap year, the number of days in February month and the year are 29 and 366 respectively. A year that is not a leap year is called a common year. A year is said to be a leap year if:

- it is divisible by 4.
- it is divisible by 4 but not divisible by 100.
- it is divisible by 4, 100 and 400.

### Method 1: Using conditional statements

In the example below, conditional statements are used to identify a leap year.

year = 2019 if year % 400 == 0: print(year, "is a leap year.") elif year % 100 == 0: print(year, "is not a leap year.") elif year % 4 == 0: print(year, "is a leap year.") else: print(year, "is not a leap year.")

The above code will give the following output:

2019 is not a leap year.

### Method 2: Using function

In the example below, a function called *leapyear()* is created which takes *year* as argument and prints whether the passed *year* is a leap year or not.

def leapyear(year): if year % 400 == 0: print(year, "is a leap year.") elif year % 100 == 0: print(year, "is not a leap year.") elif year % 4 == 0: print(year, "is a leap year.") else: print(year, "is not a leap year.") leapyear(2019)

The above code will give the following output:

2019 is not a leap year.

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