"I worked until midnight."

Translation: Ich arbeitete bis Mitternacht.

[Smaskit]

Is it incorrect to say "Ich arbeitete bis zur Mitternacht"? It's marked wrong, but is it wrong?

[Finn2400]

Ich Arr-bye-teh-teh ?

[mizinamo]

More or less, yes.

[Josh_Conner]

Why isn't "Ich habe bis mitternacht arbeiten" accepted?

[Yelle14]

«Ich habe bis Mitternacht gearbeitet» (I worked vs I have worked)