How can I prove the date and time photos of my passport were taken?

To prove the date and time your passport photos were taken, you can use several methods suggested by the community. iPhone users can check the photo details by opening the image and pressing the info button to see the date and time, then take a screenshot. Alternatively, there are applications available that allow you to add a date and time watermark to your photos. Another option is to include a current local newspaper alongside your passport for context. Lastly, some users have recommended using apps like 'iScanner' to document the timestamp directly on the photo files before submitting.