C Program to check whether a Date is Valid or not2 min read

In this tutorial, we will write a C program to check date is valid or not. Given the date, month and year, the program finds whether it is valid or not. Although before jumping to the main program, you should have knowledge of the following topics in C programming.

The valid Range for a date, month, and year is 1/1/1800 – 31/12/9999.

Explanation- What does the following program check for:

  • For Date: The date cannot be less than 1 and more than 31.
  • For Month: Month cannot be less than 1 and more than 12
  • For year: The maximum and minimum year is taken before the main program that is less than 1800 and more than 9999.
  • Leap Year: Checks if the year is a leap year or not.
    • If it is a leap year, the February month will have 29 days.
    • If it is not a leap year, the February month will have 28 days.
  • For 30 days month: The months April, June, September, and November cannot have more than 30 days

C Program Date is Valid or Not

Output:

Enter date (DD/MM/YYYY format): 13/06/1998
Date is valid.


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