Metatag in mov file

[Derek]

I'm studing a .mov file which was downloaded from internet. I know for shure that real date which the video was recorded correspond to the "Creation Date" metadata, but I don't understand why the metadata "Create Date", "Modify Date", "Track Create Date" and "Track Modify Date" report a date which is in the future as compared to a "Creation Date" metadata which is the right date.
Do you know why this kind of behavior? Tha dates should be the same...

Code Select Expand


[QuickTime]  MajorBrand: Apple QuickTime (.MOV/QT)
<...>
[QuickTime] Create Date: 2020:09:05 07:18:21
[QuickTime] Modify Date: 2020:09:05 07:18:33
<...>
[Track1] Track Create Date: 2020:09:05 07:18:21
[Track1] Track Modify Date: 2020:09:05 07:18:33
<...>
[Keys] Creation Date: 2020:04:12 09:18:26+02:00


[StarGeek]

Do you know why this kind of behavior? Tha dates should be the same...

The Create and Modify dates are not supposed to match the CreationDate unless they were filmed in a +00:00 time zone because those tags are supposed to be set to UTC.  So if the CreationDate is accurate, then the other time stamps should be set to 2020:04:12 07:18:26.

But in this case, the difference is significant, months off rather than the 2 hour difference it should be.

As to why, some program has altered them in some way.  Whether it was on purpose or accidental, there's no way to tell.