The time of the Forex market is the schedule of trading sessions, British Summer Time. Forex market is open 24 hours from Monday to Friday. When the Euro goes up and the dollar goes down, the trader would want to buy the pair, selling it later at a higher price and thus making profit. Should the opposite hold true (the US dollar is getting stronger against the EURO), it may be wise to consider selling the currency pair. However, a sudden change in the trend direction can negatively affect the profitability of the deal.