C# EXIF Data

exif.cs

//Property Item 36867 corresponds to the Date Taken
public static readonly int DateItem = 36867;

static public DateTime? GetDateTaken(Image targetImg) {
    DateTime? created;

    try 
       {     
        
        PropertyItem propItem = targetImg.GetPropertyItem(DateItem);

        //Convert date taken metadata to a DateTime object
        string sdate = Encoding.UTF8.GetString(propItem.Value).Trim();
        string secondhalf = sdate.Substring(sdate.IndexOf(" "), (sdate.Length - sdate.IndexOf(" ")));
        string firsthalf = sdate.Substring(0, 10);
        firsthalf = firsthalf.Replace(":", "-");
        sdate = firsthalf + secondhalf;
        created = DateTime.Parse(sdate);

    }
    catch (Exception e)
    {
        // No EXIF data
        created = null;
    }

    return created;
}