A way of putting stop loss is based on the time factor. Important price behaviors may be observed by any price action trader. Some traders prefer to base their trades according to the world clock of the trading day. One can set a strict watch schedule and determine what choices are to be made. The US market open hours and UK market Open hours can have a significant nudge on the Forex markets. It is important to consider price analysis during such key moments. As one can see important price fluctuations can be used to decide on whether or not to go ahead with a trade. The sudden movements in the market can completely shift the trends in a matter of a few minutes. This allows one to ride or leave the trend. Many traders would close their position basis the clock as there could be significant exposure to the change of polarity, beyond a certain timeframe.