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?
Sunsets (song)
"Sunsets" is a song released as the third single from Australian rock band Powderfinger's fifth studio album, "Vulture Street". The single was released on 4 January 2004 in Australia and New Zealand.
"Sunsets" earned a mixed response from reviewers. Some reviewers praised its appeal and aggression, whilst others appreciated the power ballad elements within it. Others, however, described the song negatively as "lumbering". "Sunsets" charted moderately, reaching No. 11 on the Australian
Sunset
Sunset, also known as sundown, is the daily disappearance of the Sun below the horizon due to Earth's rotation. As viewed from the Equator, the equinox Sun sets exactly due west in both spring and fall. As viewed from the middle latitudes, the local summer Sun sets to the northwest for the Northern Hemisphere, but to the southwest for the Southern Hemisphere.
The time of sunset is defined in astronomy as the moment when the upper limb of the Sun disappears below the horizon. Near the horizon