In spanish, how would you say, "When does it leave?"?

Question

Or how would you ask, "Do you know when it leaves?"
I don't know if I should use the subjunctive mood or not.

Would you say, "Cuando salga?"
Or if you were asking, do you know when it leaves, would you say, "Sabes cuando salga?"

Answer 1

"¿Cuando sale el tren?"
"¿sabes cuando sale el tren?"
"¿A qué hora sale el tren?"
You don´t use the subj. mood, just the present the same as in English

Answer 2

The other two posters have answered this question already. However, beardo, the subjunctive is indeed used in Spanish. It can be used to express such things as doubt (Dudo que el tren salga pronto), desire (Quiero que el tren salga), or a possibility (Cuandoquiera el tren salga será demasiodo tarde).

Answer 3

I'm pretty sure that Spanish does not use subjunctive.

My dictionary includes this example -
¿a qué hora sale el tren/tu vuelo?

Answer 4

When does it leave? = ¿Cuándo sale?
Do you know when it leaves? = ¿Sabes cuando sale?