Convert days to years, weeks, and days

Last update on September 18 2025 12:34:06 (UTC/GMT +8 hours)

Convert days to years, weeks, and days

Write a C program to convert specified days into years, weeks and days.

Pictorial Presentation:

C Code:

#include <stdio.h>

int main()
{
    int days, years, weeks;

    days = 1329; // Total number of days

    // Converts days to years, weeks and days
    years = days/365; // Calculate years
    weeks = (days % 365)/7; // Calculate weeks
    days = days - ((years*365) + (weeks*7)); // Calculate remaining days

    // Print the results
    printf("Years: %d\n", years);
    printf("Weeks: %d\n", weeks);
    printf("Days: %d \n", days);

    return 0;
}

Explanation:

In the exercise above -

• The program includes the standard input/output library <stdio.h>.
• It declares three integer variables:
• int days: This variable stores the total number of days to be converted.
• int years: It stores the calculated number of years.
• int weeks: It stores the calculated number of weeks.
• The program initializes the 'days' variable with 1329.
• It then converts:
• years = days / 365: This division calculates the number of years in the given number of days. Since there are approximately 365 days in a year, this division gives an estimate of the number of years.
• weeks = (days % 365) / 7: After calculating the years, the program uses the modulo operator % to find the remaining days that couldn't be represented in full years. It then divides this remainder by 7 to calculate the number of weeks.
• Finally, it subtracts the days accounted for by years and weeks to get the remaining days.
• The program uses printf statements to display the calculated values:
• It prints the number of years with the message: "Years: [years]."
• It prints the number of weeks with the message: "Weeks: [weeks]."
• It prints the remaining days with the message: "Days: [days]."
• The program returns 0 to indicate successful execution.

Sample Output:

Years: 3                                                               
Weeks: 33                                                              
Days: 3

Flowchart:

For more Practice: Solve these Related Problems:

• Write a C program to convert a given number of hours into equivalent days, hours, and minutes.
• Write a C program to convert minutes into days, hours, and remaining minutes.
• Write a C program to convert a total number of seconds into days, hours, minutes, and seconds.
• Write a C program to convert days into months and days, assuming a month has 30 days, and display the result.

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