A short period of time; something that takes place or is completed quickly. Often used adverbially (e.g., 'in a short time').
この作業は短時間で終わるだろう。
This task will probably be finished in a short time.
短時間の研修を受けた。
I took a short training course.
短時間勤務の制度を利用している。
I use the short-working-hours system.
短時間の仮眠で目が覚めた。
I woke up after a short nap.