File Time Stamp problem

Yesterday, my son and I took about 1500 images at a horse show.

The problem is, we didn't synch camera times. His Canon 30D had the right date, wrong time. My K20D had the right time, wrong date.

I can find plenty of utilities to set file creation dates/times and changing the date on my images is no problem. The Canon images need an adjustment of about 1hr 20mins.

Does anybody know of such a utility that can add/subtract time to/from a time stamp.?

Peter,
Not sure exactly what you need... you may just need the file date & time adjusting. This is pretty trivial & could be handled easily in a little app (the kind of thing I could write in half hour )... there may be something out there too.

However, you may also need the EXIF adjusting as well, and things may get a little more tricky

Matt

Wayhay!
Just Googled this: http://www.relliksoftware.com/pages/products/exif-date-changer.php


Matt

Matt,

I've found a utility that changes the EXIF date/time in the way I want (EXIF Date Changer) but it works only on JPG's. I can't find one to change the Windows file creation/modifed dates/times in the same way.

Essentially, I want to adjust a batch of files by 1hr 20mins or so, without having to go through them one at a time.

We had two cameras covering the one event and want the images in chronological order. I've tweaked my files with a combination of a File date change utility and Lightroom to change the EXIF by one day. It's the Canon images that are the problem

I'm not sure I'll find a utility to edit raw file EXIF, but I'll give you an hour to come up with something

Yes, I found that one, but only works with JPG's.

Matt,

I've found a utility called UpdateDates (Google for it) which will change the modification time by applying a pos or neg offset to one file, or a folder full of files. It doesn't affect the creation date though.

My immediate problem is resolved for the moment.

If you can produce a utility that can update the creation and modification dates independently by a positive or negative offset of w:days, x:hrs, y:mins, z:secs, I'd buy it. It'd be a bonus if EXIF data of raw image files could be changed in the same way.

That should keep you busy for the afternoon

Cheers,

Peter,
I hope this will work:
http://www.exiv2.org/download.html

I never used the Windows version, but should be no different to the Linux one. It's command line tool, very easy in use. I used it with jpegs, but I read the latest version can also update DNG and PEF files.

The Organiser in Photoshop Elements has a function for adjustment of date and time.

Photo Mechanic will handle dates.
Download the Manual here

Hope this helps.

shim