How long did it take to weave a piece of cloth in ancient times?

If you want to know how long it takes a piece of cloth, you must first know the value of a piece of cloth. Generally, a coarse farm cloth should be retted with hemp fiber, then spun with hemp thread and finally woven. In ancient times, a piece of cloth was about 13 or 14 meters long. If you don't do other farm work, skilled workers who specialize in spinning cloth can spin about one meter a day, which is about ten days, but counting farming. Counting the previous spinning retting, it will take several months to produce the cloth. In ancient times, rice prices and cloth prices were common, and universal equivalents could be used as money. Two pieces of cloth can be exchanged for one stone of rice, which is about 120 Jin of rice.