: Why minimum sunrise time and maximum sunrise time are not the same day?

Question

I live in Lille, France, where :
The minimum sunrise time is 5:34 am around 17th of June
The maximum sunset time is 10:05, around 25th of June.
The solstice being between those two dates.
How do we explain that sunset and sunrise time doesn’t have their maximum/minimum at the same date?

In: 2

Answer 1

Basically it’s a result of the fact that the Earth’s orbit is an ellipse instead of a circle – the “center” of the day isn’t always the same.

So although June 17th isn’t the longest day, it does start the earliest because it’s “center” is earlier than the actual longest day (and vice versa for June 25).