How to find out the exact time when the user's main photo was changed?

Question

Classmates

Hello.
There is a user of classmates who changed his main photo to another. After some time, only the date of the change is written in the event feed, but not the time.
You need to get the exact time (day, hours, minutes) of this event.
I used photos.getPhotoInfo, but there is no necessary information in the response of the function.
This information is extremely important.
How can I do that?

Answer 1

And the field in the created_ms response to photos.getPhotoInfo is not suitable for ideological reasons?
Since this method can return slightly different objects - photo and group_photo, a prefix is ​​required to specify a specific field, for example, photo.created_ms

Answer 2

no way, Odnoklassniki do not store such accurate timestamps for a long time, expensive