@matigo <Mr. Science voice>
Well, Jason, the Earth rotates at a speed approaching 1600 km/h, although we don't perceive the speed since we're on the planet's surface. As the rotation occurs, the day progresses, and from our perspective the time we have arbitrarily designated as 1:00 AM occurs on a regular basis, shortly after the midpoint between sunset and sunrise.
</Mr. Science voice>