This is the 1888th most frequent Swedish word.
lördagskvällen
"Saturday evening."
The word 'lördagskvällen' specifies the time of the event referring to Saturday evening.
På lördagskvällen gick vi ut och åt middag.
On Saturday evening, we went out to have dinner.
Here 'lördagskvällen' is used to set the context of when the movie was viewed.
Filmen vi såg på lördagskvällen var väldigt spännande.
The movie we watched on Saturday evening was very exciting.
In this sentence, 'lördagskvällen' serves to describe the timing of the occurrence of the rain.