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C++ program to read time in HH:MM:SS format and convert into total seconds using class

Given a time in HH:MM:SS format, we have to convert the given time into total seconds using class and object approach in C++.
[Last updated : March 01, 2023]

Convert time from HH:MM:SS to seconds

In this program we will read time in HH:MM:SS format and convert time into total seconds using class.

Convert time from HH:MM:SS format to seconds using class program in C++

// C++ program to read time in HH:MM:SS format 
// and convert into total seconds

#include <iostream>
#include <iomanip>

using namespace std;

class Time {
private:
    int seconds;
    int hh, mm, ss;

public:
    void getTime(void);
    void convertIntoSeconds(void);
    void displayTime(void);
};

void Time::getTime(void)
{
    cout << "Enter time:" << endl;
    cout << "Hours?   ";
    cin >> hh;
    cout << "Minutes? ";
    cin >> mm;
    cout << "Seconds? ";
    cin >> ss;
}

void Time::convertIntoSeconds(void)
{
    seconds = hh * 3600 + mm * 60 + ss;
}

void Time::displayTime(void)
{
    cout << "The time is = " << setw(2) << setfill('0') << hh << ":"
         << setw(2) << setfill('0') << mm << ":"
         << setw(2) << setfill('0') << ss << endl;
    cout << "Time in total seconds: " << seconds;
}

int main()
{
    Time T; //creating objects

    T.getTime();
    T.convertIntoSeconds();
    T.displayTime();

    return 0;
}

Output

Enter time:
Hours?   1
Minutes? 1
Seconds? 6
The time is = 01:01:06
Time in total seconds: 3666