How does geographical latitude affect the Blue Hour?

The Blue Hour is longer or shorter depending on how far you are from the equator, that’s what geographical latitude means.

Imagine you're playing with a flashlight in a dark room. When you shine it straight ahead, the light covers a small area, but when you tilt it up, the light spreads out and reaches farther. That’s like what happens with the sun at sunset.

At places closer to the equator, think of a beach near the middle of the world, the sun sets more directly. So the sky turns blue quickly, and then it gets dark soon after. It's like turning off your flashlight fast.

But if you’re at a place farther from the equator, say, in a cold land with long winters, the sun sets at an angle. The light stretches across the sky, making the Blue Hour longer, just like tilting your flashlight up makes the light reach farther.

So geographical latitude is like the angle of the flashlight, it decides how long you get to enjoy that nice blue time before night comes.