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//we init this once so that if the function is repeatedly called

    //it isn't stressing the garbage man

    private static Regex r = new Regex(":");

 

    //retrieves the datetime WITHOUT loading the whole image

    public static DateTime GetDateTakenFromImage(string path)

    {

        using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read))

        using (Image myImage = Image.FromStream(fs, false, false))

        {

            PropertyItem propItem = myImage.GetPropertyItem(36867);

            string dateTaken = r.Replace(Encoding.UTF8.GetString(propItem.Value), "-", 2);

            return DateTime.Parse(dateTaken);

        }

    }

   

Image myImage = Image.FromFile(@"C:tempIMG_0325.JPG");

PropertyItem propItem = myImage.GetPropertyItem(306);

DateTime dtaken;

 

//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;

dtaken = DateTime.Parse(sdate);

   

// Read all metadata from the image

var directories = ImageMetadataReader.ReadMetadata(stream);

 

// Find the so-called Exif "SubIFD" (which may be null)

var subIfdDirectory = directories.OfType<ExifSubIfdDirectory>().FirstOrDefault();

 

// Read the DateTime tag value

var dateTime = subIfdDirectory?.GetDateTime(ExifDirectoryBase.TagDateTimeOriginal);

   

var directories = JpegMetadataReader.ReadMetadata(stream, new[] { new ExifReader() });

   

//retrieves the datetime WITHOUT loading the whole image

    public static DateTime GetDateTakenFromImage(string path)

    {

        using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read))

        using (Image myImage = Image.FromStream(fs, false, false))

        {

            PropertyItem propItem = null;

            try

            {

                propItem = myImage.GetPropertyItem(36867);

            }

            catch { }

            if (propItem != null)

            {

                string dateTaken = r.Replace(Encoding.UTF8.GetString(propItem.Value), "-", 2);

                return DateTime.Parse(dateTaken);

            }

            else

                return new FileInfo(path).LastWriteTime;

        }

    }