Unfortunately, Apple does not have a built-in timestamp for photos on the iPhone or iPad. That's not the end of the story though, on adding a date and time stamp to your iPhone photos. There are a few apps available that can help you out with the process.

How can I tell when an iPhone picture was taken?

Open the app and go to the camera roll. Tap the plus button and import the photo you want to view date information for. Select that photo and tap the (i) button. The date and time the photo was taken will be displayed, as well as lots of other useful details.

How do I get the date and time on my iPhone photos?

Take photos with date and time using iPhone

When you open the Stamp Camera app on iPhone, it will open your iPhone camera automatically. Swipe left and right to change a different date & time stamp, then press the shutter button to take a picture with the date and time on it.