行事之法与“时”一起变化。出自《周易·彖下》。“时”即时间，也指事物发展过程中出现的时机或时运。在“时”所规定的境遇中，有着与之相适应的处事之法。“时”的出现与消失及其对人事的影响，体现着天道、人事的运行法则。人应认识并把握“时”的变化，采取与“时”相适应的行动。

　　Go with the Times

　　The notion of adjusting one's actions to the "times" comes from The Book of Changes. The "times" refer to the opportunities or chances that present themselves as human activities progress. In the circumstances determined by the times, one should choose correspondingly suitable methods of handling affairs. The appearance and disappearance of opportunities and chances, and their impact on human affairs reflect the principles of the way of heaven and human affairs. People should recognize and keep pace with the change of the times and adapt in agreement with the times.

　　引例：损益盈虚，与时偕行。（《周易·彖下》）（事物的增减盈亏的调节变化，应当把握好时机，遵从规律。）

　　Either to decrease or to increase, to inflate or to deflate: all should go with the times. (The Book of Changes)