¿Cómo corregir las fechas de las fotos en Photos.app para que coincidan con los datos EXIF?

Aquí tienes un Applescript que soluciona el problema. Funciona mediante la exportación de cada foto original en el disco, a continuación, leer la etiqueta EXIF, analizar la fecha y el establecimiento de que de nuevo en Photos.app.

Utiliza exiftool que se puede instalar con Homebrew.

El script puede encontrarse en https://gist.github.com/joerick/a68ecc083e4dbcedb8737f6a5b524ef5

-- create a folder for use by the script and set the path to it here
set thepath to alias "Macintosh HD:Users:joerick:Desktop:Scratch" as text

tell application "Photos"
    set photos to every media item of container "DateFix"
    repeat with mediaitem in photos
        tell application "Finder" to delete every item of folder thepath
        export {mediaitem} to thepath with using originals
        tell application "Finder" to set theExport to item 1 of folder thepath

        set theCommand to "/opt/homebrew/bin/exiftool -S -DateTimeOriginal " & (quoted form of POSIX path of (theExport as alias))

        set exifOutput to do shell script theCommand

        set resultDate to the current date

        set the year of resultDate to (text 19 thru 22 of exifOutput)
        set the month of resultDate to (text 24 thru 25 of exifOutput)
        set the day of resultDate to (text 27 thru 28 of exifOutput)
        set the hours of resultDate to (text 30 thru 31 of exifOutput)
        set the minutes of resultDate to (text 33 thru 34 of exifOutput)
        set the seconds of resultDate to (text 36 thru 36 of exifOutput)

        set the date of mediaitem to resultDate

    end repeat
end tell