Mazalim (Zodiac) Amination
There are 12 constellations of the Zodiac. The animation begins and ends with Libra rising. The Sun (marked with a yellow ball) is in Sagittarius. Daylight begins when the Sun / Sagittarius rises. The constellation directly opposite the Sun is Gemini. Therefore, when Gemini is rising that means the Sun is setting. Night begins when Gemini rises / Sun sets. For every constellation that is rising, the one directly opposite it (6 away) is setting. Everything rises in the East, and sets in the West because the Earth rotates "counter-clockwise" (so to speak).