Incense clock

An incense clock is a timekeeping device that uses the burning of incense as a means to measure the passage of time. This type of clock does not rely on conventional mechanisms like gears or pendulums; instead, it involves incense sticks or coils that burn at a consistent rate. Historically, incense clocks were used in various cultures, especially in ancient China and Japan, where they played a significant role in religious and ceremonial practices.