thw worst time of trading is when there are g8 meeting, economic meeting, or ecnomic summit. that's when everybody are waiting for the result of the meeting. Then narket will move very choppy when someone important making a speech about country's condition or global economic. That's include president of IMF. The worst time for trading in the Forex market is when it is least active. This is true of any market and is easy to understand. The more active a market is the more liquidity it will show. There are different sessions of the Forex market that operate such as the London session, the New York session, the Tokyo session and the Sydney session. The overlapping of these time zones show heightened market activity and are the best for trading Forex. It is more profitable to trade during overlapping times as it gives currency pairs more room for fluctuation.