Nicht

Frae Wikipedia

An eemage shawin the terminator dividin nicht frae day, rinnin athort Europe an Africa. Observers on the surface o the yird alang this terminator will see a sunset.

Nicht or nichttime is the period o time whan the sun is ablow the easins. The opposite o nicht is day (or "daytime" tae distinguish it frae "day" as uised for a 24-hoor period). Time o day varies based on factors sic as saison, latitude, longitude an timezone.