Learn English: Why aren't days and nights equal on the autumn equinox? (easy)

The autumn equinox happens this week, when the sun seems to move south and our days get shorter.

People think day and night are the same length, but that's not quite right, which is interesting!

The air around Earth bends the sun's light, adding extra minutes of daylight at the equinox.

So, day and night are truly equal a bit later, around September 25th or 26th, it's called the equilux.