Why do my pictures have the wrong dates on them when I transfer them from the camera to the computer with the Picasa program?
One reason may be that the date and time settings on the camera were incorrect when the photos were taken. When you snap the shutter, a digital camera records more than just the image; it also embeds other data into the photo file.
This information includes the date, time, image dimensions and make and model of the camera. If the camera's date setting is incorrect, it will write the wrong time in the photo file. Google has more information about viewing a photo's embedded data in Picasa at bit.ly/WDHcoQ.
To fix the problem for future photos, go into your camera's settings menu and correct the date and time. For the photos you have already imported into Picasa 3.5 and later, select the pictures with the incorrect dates in a folder or album, go to the Tools menu and choose Adjust Date and Time. Enter the correct information in the New Photo Date area and click OK.