i saw everything but i did not find any useful information i need help i want to merge my photo and its json data actually i took all my data back from google takeout and the date of the photo is changed pl plz help me i dont know anything about coding .... thanks
Which date are you looking at? It helps to know what program you're using which sees a wrong date.
Google photos/takeout did not change any of the original embedded data, so unless you added dates on the website, you don't need to do anything.
What would have changed would be the file system timestamps, FileCreateDate and FileModifyDate.
Pick one of the files and run this command on it. Look to see what is the name of the wrong date/time.
exiftool -time:all -g1 -a -s /path/to/files/