The time element this person said refers to the key point, which is related to the support point. In his time, there was no current K-line, so he was used to recording stock prices. For example, he recorded the stock price movements of 8 yuan, 9 yuan, 10 yuan, 9.9 yuan, 9.8 yuan, 9.6 yuan, 9.5 yuan, 9.7 yuan, 9.9 yuan, 10 yuan, 10.2 yuan. So far, from the stock price, there is a process of rising, callback and rising again. This person doesn't buy stocks during the callback. If his principle is to buy two points higher than the previous high, then the price of 10.2 yuan is in line with his buying principle, that is, to buy at this time and at this price. This is the time factor. But in the current A-share market, this principle does not necessarily apply. Only by practicing more can you get your best method. Wish you success!