You must leave before the night is out
今夜は泊りだ
今夜は新月だ
今夜は月夜だ
今夜は泊り番だ
from last night to now
今夜はもう帰ります。
I'm going home for the night.
ああ、ひょっとしたら今夜は・・・。
We have plenty of time tonight.
I have to burn the midnight oil tonight.
もう夜だ.
I am going to bed for night.
今夜はお出かけするよ。
I'm going out this evening.
I want to be with you tonight.