2D animation of the changing sky from day to night

2d, animation, atmospheric, cartoon, celestial, change, clouds, color, colour, cycle, dark, dawn, day, daytime, design, dusk, effects, evening, evolution, gradient, horizon, imagination, light, lunar, meteorology, moon, motion, movement, nature, night, nightfall, nighttime, sky, skyline, solar, stars, sun, sunrise, sunset, time, time-lapse, transformation, transition, twilight, visual, weather