Picture taken time realign to local time

[igrushka7]

Hi all.
I have recently come home to Australia from the US & Canada .
Obviously, a lot of photos were taken, but I never reset my camera to local times.
And the time lag in US is between 14 Hours and 17 H, which masses up the date stamping.
So, could anyone tell me how can I BATCH process the shift of 14 to 17 hours time stamping.
Say, when my camera had 31 Aug 7:10, in LA it was 30 Aug 14:10

I have used a Cannon IXY camera.
My PC runs Windows XP.
The Irfanview is the last v4.35

Thanks,
Boris.

[calberga]

I'm going to be "bad" and suggest a small freeware program which does this very neatly.

http://jpgtime.learsy.com/

You can load up all your images and add/subtract a delta from the times. It will just set the "modified" time for the file, and/or the EXIF times.

I use it after any overseas trip. One thing I do to make it easy. Every time I change a timezone I take a picture of my digital watch, set to the local time. This gives me relationship between the camera's clock and the local time, so I never reset the camera.