hour bell; time bell
A bell that rings to announce the time, historically used in Japan to mark the hours.
江戸時代、時の鐘は町の人々に時刻を知らせていた。
In the Edo period, the hour bell told the townspeople the time.
Compound of 時 (とき, 'time') + の (possessive particle) + 鐘 (かね, 'bell').