What is "jikijitsu"

A (Chinese: chih-jih) is the directing monk in charge of every movement of the monks coming to sit zazen in the zendo in a Japanese Zen monastery of the Rinzai School. Their position is that of head monk, and they are generally regarded as strict disciplinarians. Their position is considered most desirable to hold in the meditation hall. The jikijitsu also ensures that the monks get to sleep and wake up on time according to a strict protocol.