Breakdown of Die Party dauert von Samstag bis Sonntag.
die Party
the party
von
from, of / by (agent in passive clauses)
bis
until / to (as far as)
dauern
to last / to take (time)
Questions & Answers about Die Party dauert von Samstag bis Sonntag.
How do von and bis work together in this sentence?
The phrase von ... bis ... means "from ... to ..." or "from ... until ...". It is the standard way to express a span of time that has a clear start and end point.
Why are there no articles before Samstag and Sonntag?
When using von ... bis ... with days of the week, months, or years, the articles are dropped. You simply say von Samstag bis Sonntag instead of trying to add dem or den.
What cases are being used after von and bis here?
The preposition von always requires the dative case, and bis always requires the accusative case. Because we drop the articles for the days of the week in this phrase, you don't actually see the case changes, but the rule is still active behind the scenes!
Could I use seit (since) instead of von here?
Not if you are also using bis Sonntag. The word seit (since) is used for an action that started in the past and is still ongoing right now, so it doesn't take an end date. Because this sentence gives a specific end point (Sunday), we must use von.