What is the time gap between two latitudes?

Answer 1

There is generally no time distinction between two latitudes along the same line of longitude since a whole line of longitude "faces" the sun at the same time.

Answer 2

The time gap between two latitudes is determined by the difference in their longitudinal positions. For every 15 degrees of longitude difference, there is a 1-hour time difference. This is because the Earth rotates 360 degrees in 24 hours.