In order for a driver to graduate from a learner's license to an operator's license, how many hours of driving need to be documented? How many nighttime driving hours are required?

This can depend on the state, but I will answer this question on the example of Florida.

In the state of Florida, you need to document 50 hours of driving, and out of those 10 must be at night.

The form of proving this is a statement of your parent or a guardian.