How do people tell the time using smoldered knotted ropes?

People tell time using smoldered knotted ropes, known as "knotted timekeeping" or "fire ropes," by burning the ropes at specific intervals. Each knot represents a predetermined time segment, and as the rope smolders and burns, the knots release smoke signals or produce a distinct burning time that can be visually monitored. By observing the rate of burning and the timing of when knots are reached, individuals can estimate the passage of time. This method was historically used in various cultures before the advent of modern timekeeping devices.