#include 
#include 

int main()
{
    printf("*#This is a stopwatch#*\n\n\n");
    printf("**Press 'p' to pause.\n");
    printf("**Press any key to start & to stop.");
    getch();
    system("cls");
    printf("\t\t*#This is a stopwatch#*\n\n\n");

    clock_t s, n;
    s = clock();

    while (1)
    {
        while (1)
        {
            n = clock();
            printf("\r");
            printf("Time-\t %d : %d : %d ", ((n - s) / 1000) / 60, ((n - s) / 1000) % 60, (n - s) % 1000);
            if (kbhit())
                break; // kbhit() does not read the character
        }

        if (getch() == 'p')
        {
            printf("\rTime-\t %d : %d : %d ", ((n - s) / 1000) / 60, ((n - s) / 1000) % 60, (n - s) % 1000);
            getch();
        }
        else
            break;

        s = s + (clock() - n); // split time
        // s=clock();    //lap time
    }

    printf("\rTime-\t %d : %d : %d ", ((n - s) / 1000) / 60, ((n - s) / 1000) % 60, (n - s) % 1000);

    getch();
    getch(); // to read the extra characters
    printf("\n\n\n");

    return 0;
}

*#This is a stopwatch#*
**Press 'p' to pause.
**Press any key to start & to stop.

*#This is a stopwatch#*
Time-    0 : 7 : 784