timer.h

#include <iomanip> 
#include <iostream> 
#include <stdlib.h> 
#include <Windows.h>
using namespace std;
class timer
{
    int hours = 0;
    int minutes = 0;
    int seconds = 0;

    // function to display the timer 
    void CounterClock()
    {
        // system call to clear the screen 
        system("cls");

        cout << setfill(' ') << setw(26) << "         COUNTERCLOCK         \n";
        cout << setfill(' ') << setw(26) << " ..........................\n";
        cout << setfill(' ') << setw(19);
        cout << "| " << setfill('0') << setw(2) << hours << " hrs | ";
        cout << setfill('0') << setw(2) << minutes << " min | ";
        cout << setfill('0') << setw(2) << seconds << " sec |" << endl;
        cout << setfill(' ') << setw(26) << " ...........................\n";
    }

    void countdown()
    {
        while (true) {
            CounterClock();

            Sleep(1);

            seconds++;

            if (seconds == 60) {
                minutes++;

                if (minutes == 60) {
                    hours++;
                    minutes = 0;

                }
                seconds = 0;
            }
        }
    }

};