DateTime, Now, Convert.ToSingle(), Math.PI

DateTime

 DateTime dateTime = DateTime.Now;
 //int hour = dateTime.Hour % 12; // also converts 24hrs to 12hrs format
 int minute = dateTime.Minute;
 int sec = dateTime.Second;

 //float hourRadian = Convert.ToSingle(hour* 360/12 * Math.PI/180);
 float minRadian = minute * 360/60 * Convert.ToSingle(Math.PI)/180;
 float secRadian = sec * 360/60 * Convert.ToSingle(Math.PI)/180;

 float hour = dateTime.Hour%12 + (float)dateTime.Minute/60;
 float hourRadian = hour * 360/12 * Convert.ToSingle(Math.PI)/180;