Declarationproperty EXIF_DateTimeOriginal: AnsiString;
The date and time that the original image was taken. This value should not be modified by your software. The data format is "YYYY:MM:DD HH:MM:SS"+0x00, total 20 bytes. If the clock has not been set or the camera doesn't have a clock, the field may be filled with spaces. In the Exif standard this tag is optional, but it is mandatory for DCF.