～時間
～じかん · ～jikan · JLPT N5 · noun
hours
⏰ 時間 = time (時) + interval (間): a counted stretch of time
時 means time or hour, 間 means the gap between two points. Together 時間 is a span of time, so a number in front counts hours of duration: 三時間 = 3 hours long. Compare 三時, which is the clock time 3 o'clock.