I have over 500 images (png /jpg) having wrong captured date (Date taken) because of wrong camera date settings. I moved photos to mobile and mobile gallery sorts photos on the
No real need to write Python, you can do it in one line in the Terminal using jhead. For example, adjust all EXIF times forward by 1 hour
jhead
jhead -ta+1:00 *.jpg
Make a COPY of your files and test it out on that first!
Download from here.