What is when the night is falling?

When the night is falling, it means that the sun has set and the sky is getting darker. The sky also begins to change color, ranging from shades of pink, orange, and red to deep blues and blacks. As the night falls, the temperature also starts to drop, and the atmosphere becomes quiet and still. Different creatures such as owls, bats, and nocturnal animals slowly emerge from their hiding places, ready to start their night-time activities. This is the time when urban areas light up with glow from streetlights and houses, creating a beautiful sight to behold. In some cultures, the onset of nightfall is the start of certain ceremonies, rituals, and festivities.