"Li laboras dum la nokto."

Translation: He works at night.

[RoseWolf95]

Would "Li laboras nokte" not work as well?

[Mutusen]

It would, it's a perfectly normal sentence.

[DanielKnis1]

Why "dum" and not "en"?

[claire_resurgent]

"En" establishes a deadline or makes the clause specific to a certain time/situation.

en vetero pli bona - in better weather
en Januario - in (before the end of) January
en apenaŭ dek sekunoj - in no more than ten seconds

So, "en nokto" is slightly different from "dum nokto" - it implies that he doesn't work during the day.

[aquaticsklo]

I could have sworn he said gxi :((

[solumaenus]

Cxu li estas Batman?

[tabi185471]

what's the difference between dum la nokto and nokte in meaning?
is it that one concerns one specific night while the other every night or at night in general?