Program to find the time remaining for the day to complete

Given the current time in the form of HH::MM, where H represents the hours and M, represents the minutes in a 24-hour time format. The task is to calculate the time remaining for the day to complete as HH::MM.
Examples:

Input: HH::MM = 00::01
Output: 23::01

Input: HH::MM = 23::55
Output: 00::05

Approach:

1. Since the total minutes in a 24 hour complete day is 24 * 60 = 1440 minutes
2. Calculate the time completed in minutes
3. Calculate the time remaining in the form of minutes as total minutes – time completed
4. Convert the time remaining in the form of HH::MM

Below is the implementation of the above approach: 

CPP

#include <bits/stdc++.h>
using namespace std;

// Function to find the remaining time
void remainingTime(int h, int m)
{
    int totalMin, hoursRemaining, minRemaining;

    // Formula for total remaining minutes
    // = 1440 - 60h - m
    totalMin = 1440 - 60 * h - m;

    // Remaining hours
    hoursRemaining = totalMin / 60;

    // Remaining minutes
    minRemaining = totalMin % 60;

    cout << hoursRemaining << "::"
         << minRemaining << endl;
}

// Driver code
int main()
{

    // Current time
    int h = 0, m = 1;

    // Get the remaining time
    remainingTime(h, m);

    return 0;
}

Java

class GFG
{

// Function to find the remaining time
static void remainingTime(int h, int m)
{
    int totalMin, hoursRemaining, minRemaining;

    // Formula for total remaining minutes
    // = 1440 - 60h - m
    totalMin = 1440 - 60 * h - m;

    // Remaining hours
    hoursRemaining = totalMin / 60;

    // Remaining minutes
    minRemaining = totalMin % 60;

    System.out.print(hoursRemaining+ "::"
        + minRemaining +"\n");
}

// Driver code
public static void main(String[] args)
{

    // Current time
    int h = 0, m = 1;

    // Get the remaining time
    remainingTime(h, m);
}
}

// This code is contributed by Rajput-Ji

Python

# Function to find the remaining time
def remainingTime(h, m):

    # Formula for total remaining minutes
    # = 1440 - 60h - m
    totalMin = 1440 - 60 * h - m

    # Remaining hours
    hoursRemaining = totalMin // 60

    # Remaining minutes
    minRemaining = totalMin % 60

    print(hoursRemaining,"::",minRemaining)

# Driver code

# Current time
h = 0
m = 1

# Get the remaining time
remainingTime(h, m)

# This code is contributed by mohit kumar 29

C#

// C# program to Number of pairs of lines
// having integer intersection points
using System;

class GFG
{

    // Function to find the remaining time
    static void remainingTime(int h, int m)
    {
        int totalMin, hoursRemaining, minRemaining;

        // Formula for total remaining minutes
        // = 1440 - 60h - m
        totalMin = 1440 - 60 * h - m;

        // Remaining hours
        hoursRemaining = totalMin / 60;

        // Remaining minutes
        minRemaining = totalMin % 60;

        Console.WriteLine(hoursRemaining+ "::"
                            + minRemaining);
    }

    // Driver code
    public static void Main()
    {

        // Current time
        int h = 0, m = 1;

        // Get the remaining time
        remainingTime(h, m);
    }
}

// This code is contributed by AnkitRai01

Javascript

<script>

// Javascript program to Number of pairs of lines
// having integer intersection points


    // Function to find the remaining time
    function remainingTime(h, m)
    {
        var totalMin, hoursRemaining, minRemaining;

        // Formula for total remaining minutes
        // = 1440 - 60h - m

        totalMin = 1440 - 60 * h - m;

        // Remaining hours

        hoursRemaining = totalMin / 60;

        // Remaining minutes

        minRemaining = totalMin % 60;

        document.write(Math.trunc(hoursRemaining)+
        "::" + minRemaining);
    }

    // Driver code


        // Current time
        var h = 0, m = 1;

        // Get the remaining time
        remainingTime(h, m);

</script>

Output:

23::59

Time Complexity: O(1)
Auxiliary Space: O(1)