Sunrise or arunika is an event in which the uppermost side of the Sun appears above the horizon to the east. The rising sun is not the same as the dawn, where the sky begins to light, some time before the Sun appears, ending twilight.
The dawn is a reddish glow in the eastern sky before the sunrise. As the sun of Dawn has a million other meanings
The sunset is the time when the sun disappears below the horizon line to the west.
The red color in the sky at sunset.