Nikon 5000 jpg images - fails to date-shift

[Megalomac]

I'm attempting to date-shift exif data 1 year forward, but when running this app, it only updates the modified date. 
I'm using Win7-64 & Exiftool 8.25.

The script I'm running is:

Code Select Expand

exiftool -AllDates+=1:: *
It renames the original and creates a new file, but the only difference is the modified date.  The DateTime, DateTimeOriginal, and DateTimeDigitized are untouched.

Any help on how to do this correctly?  Or is this a bug?

[Phil Harvey]

The shift string "1::" should shift by one hour.  If you want one year, use "1 0".

If you still have problems, post the output of exiftool -a -G1 -time:all FILE before and after the shift and I should be able to help more.

- Phil