I would have thought that most Digital Cameras record the date and time of shooting the image. I have a Cannon G3 PowerShot, it records 16/02/05 01:21:51as you can see, down to the last second.
Look for Exif in the camera specs. This format will display about 22 items, speed, apature, size, if flash used and about eighteen other items.
You will need photo editing software to read it but the infomation is embedded in the file. do Google on Exif for more info.