To set the time and date stamp, first you'll need to make sure that your memory card is inserted into the camera, and that the camera is connected to your computer (with the USB cable plugged into the "1A" port on the charger), as pictured in the image below:
Once the camera is connected to and recognized by your computer, you'll see a popup window like the following:
Click "View all files" to view the files on the camera.
Once you are in the main/root directory (E: in this example), create a text file by right clicking and click Create New > Text Document, and name it "timerset" without the quotes:
Once the text document has been created, open it and enter the current time and date in the following format:
NOTE: The hour (HH) is in 24-hour time, so 530PM should be typed out as 1730.
For example, if the current time/date is November 20, 2015 at 5:30PM, the date will look as follows:
Be sure to make sure there is a space between the time and date and the letter "Y".
Once you have finished entering the time and date as described above, save the file, and close it.
If you're having trouble setting the time and date stamp, you can download a sample timerset file by clicking here.
After you've saved and closed the file, disconnect the camera from your computer. The next time that you plug the camera into a wall outlet, the new time/date stamp will be applied. If the time setting process is completed successfully and the time/date stamp is applied, the timerset.txt file will automatically be removed, so the next time you connect the camera to your computer, you won't see it in the main directory any more.