The foreign exchange and precious metal markets operate around the clock, but the liquidity, volatility and dominant logic of each period are obviously different. This article explains the light momentum in the Asian trading, the main stage of volatility during the overlapping period in Europe and the United States, and the characteristics of gap risks in the late period of the American trading and weekends. It also provides a rhythm arrangement for planning the Asian trading, executing the European and American trading, and checking at the end of the day. It also uses limit orders, price warnings, and mobile terminals to automate execution methods to help traders arrange their work and rest in accordance with the market rhythm.