void str_to_sec()
{
	// String containing time
    string strTime = "001:12:00:00.0"; // 1 day, 12 hrs, 0 mins, 0 secs

    // Convert time string to julian value
    double dTime = str_to_time(strTime);
    printf("Julain value of %s = %f\n", strTime, dTime);

    // Can multiply julian value by number of seconds in a day to get seconds
    const int NSECS_PER_DAY = 24*60*60;
    printf("Number of seconds= %f\n", dTime * NSECS_PER_DAY);    
}