The sunset or the sun down is the disappearance of the sun 
ok, and at what times does the sunset happen where you live?
The sunset will happen exactly due west at the equator on the spring and fall
And in winter and summer, when does it happen then?
Not much information on that but the sunset is very distinct from the twilight
In what way is the sunset distinct from the twilight?
Near the horizon, atmospheric refraction causes the ray path of light from the sun
Sunsets can be very beautiful sometimes with all the colors, that is probably the reason.  What else can you tell me about sunsets?
There is a song called "sunset'' this was made from the band vulture street!