ExifTool Forum

ExifTool => The "exiftool" Application => Topic started by: jhford on July 05, 2023, 05:37:07 PM

Title: difference between "File Creation Date/Time" and "Create Date"?
Post by: jhford on July 05, 2023, 05:37:07 PM
What is the difference between "File Creation Date/Time" and "Create Date"?
Thanks
Title: Re: difference between "File Creation Date/Time" and "Create Date"?
Post by: StarGeek on July 05, 2023, 06:08:46 PM
Split post because the thread it was originally posted was an inactive one and this is a new question.

The FileCreateDate/FileModifyDate tags are part of the file system and are not embedded in the file. FileCreateDate is when the file was originally created and FileModifyDate is the last time the file was opened for a write operation, i.e. the last time the file was modified.  These tags will follow the file when it is directly copied between drives but will be lost if the file is uploaded via http.

CreateDate is a tag embedded in the file, usually in EXIF, but for a video it would be in the Quicktime group and XMP for an XMP sidecar file.  This is the date time the image was created. For files directly copied from a camera, this will be the same as the FileCreateDate, but it can be different.  If the file is downloaded from a website, then the FileCreateDate will be the date/time it was downloaded.  If a image was scanned with a scanner, the FileCreateDate would be when the file was scanned but the CreateDate is supposed to be set to the when the image was originally taken, though this would have to be set manually.  For example, if you scanned a picture of your grandma from Christmas 1970 right now, then the CreateDate should be something like "1970:12:25 12:00:00".  But the FileCreateDate would be today, something like "2023:07:05 12:00:00".