This is the 824th most frequent Dutch word.
duren
"To last" or "to endure."
Here, 'duren' expresses a duration of time that an event takes.
De vergadering zal drie uren duren.
The meeting will last three hours.
In this sentence, 'duren' is used to inquire about the time length of the journey.
Hoe lang zal de reis duren?
How long will the journey take?
'Duren' here is past tense, describing the actual duration of the party.