Got a minute? How about 1,440 of them? That may seem like a lot, but when you add them all up they equal a single day. This summer there is a day that may have you questioning time itself.

Imagine waking up in your backyard, or on the beach from a midday nap, and it looks kind of dark out. You check the time. It’s midafternoon, and then you look to the sky. The sun is there, yet it’s not! What on earth is happening?