The forex market is a 24 hour market. Never stops except on weekends. Within this 24 hour period different currencies behave in different manners. As a day trader it is very important to know the “personality” of the currency you are trading. For example, the GBP/USD is more volatile in early to mid European session than any other liquid pair. For a day trader trading in these hours it would be wise to take advantage of the price swings the GBP/USD pair offers instead of trading some other currency pair that constantly shows no movement. The USD/CAD pair is “silent” in the early to mid European session but starts to have more price movement toward the start of the US session. Every time Non Farm Payroll is released most if not all currency pair have a very small price range up to release time. As a day trader it wouldn’t be wise to trade during these pre-announcement hours with strategies that are based on breakouts. It would probably be smarter to use strategies that are based on range support and resistance.