DateTime - The date and time of image creation. In this standard it is the date and time the file was changed. The format is"YYYY:MM:DD HH:MM:SS" with time shown in 24-hour format, and the date and time separated by one blankcharacter. When the date and time are unknown, all the character spaces except colons (":") may be filledwith blank characters.

DateTimeOriginal - The date and time when the original image data was generated. For a DSC the date and time the picture was taken are recorded.

DateTimeDigitized - The date and time when the image was stored as digital data. If, for example, an image was captured by DSC and at the same time the file was recorded, then the DateTimeOriginal and DateTimeDigitized will have the same contents.