how to edit ModifyDate to affect all dates?

[banana123]

Hello everyone!
I want to modify the EXIF:ModifyDate tag, which is a simple task thanks to the exiftool.
I want it to update all related tags (especially timezones, subsec, etc...).
Is there any way to do that instead of updating them one by one?
thanks!

[StarGeek]

Use SubSecModifyDate (see the Composite tags page).

I go into further details on the the three shortcut tags which write all three of the corresponding EXIF tags at once in this post.

[banana123]

Use SubSecModifyDate (see the Composite tags page).

I go into further details on the the three shortcut tags which write all three of the corresponding EXIF tags at once in this post.

So just to make it clear,
if I'll implement the three composite tags (SubSecCreateDate, SubSecDateTimeOriginal, SubSecModifyDate), the other EXIF tags will follow?

[StarGeek]

Take a look at the linked Composite tag page.  Under each of the Composite tags, it will list the three tags that it will write.

Look at this post for a command example.  Though I don't show it, the test file is completely empty of all metadata.  On the first line, I set all three of the Composite tags.  Then I show the output which completely fills all the EXIF tags.