The best time to trade Forex currencies depends on the currency pairs you are trading and market volatility. Typically, the most active trading hours are when the market sessions overlap: the London and New York sessions (8 am to noon EST) for high liquidity in EUR, GBP, and USD pairs, and the Tokyo and Sydney sessions (2 am to 4 am EST) for Asian currencies like JPY and AUD. High liquidity during these times often leads to tighter spreads and more movement in the market.