How to get file creation date of photo stored in photo album

I expect you can do this using the Photos framework but, not not being an expert in that API, I don't have any concrete suggestions. I've moved your thread over to Media > PhotoKit and hopefully someone here can help you out.

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That data is stored in the exif data if the photo has any exif data. Photos downloaded

from the web won't have the actual exif data but that created when it was saved to the

photos albums. Also, some storage forms don't preserve that data so, a .tiff for example

may have that data but a .png may not.

A PHAsset object (retrieved using the PHAsset fetchAsset* methods) has a creationDate property. That might or might not be what you're looking for - as RLKingSoftware said, there's also EXIF data on some photos. Most of the time when a photo is imported into the photos library its creationDate will match the one in its EXIF data but not always.