off-hour

Noun

(US) A period when traffic is light / time outside normal business hours

Japanese Meaning

通常の営業時間外の時間帯 / 交通量が少なく静かな時間帯

We drove to the airport during the off-hour to avoid the usual congestion.

私たちは普段の混雑を避けるために、交通量の少ない時間帯に空港へ向かった。

Sense（1）

(US) A period when traffic is light

Sense（2）

time outside normal business hours

Fist: So I get friendly with the whores in my off hours. So what? That's all I got left of the old days, thanks.

off-hours

（ plural ）