Tokyo session: 7 PM - 4 AM Eastern
London session: 3 AM - 12 PM Eastern
U.S. session: - 8 AM - 5 PM Eastern
You can look at it as a free forex trading practice session. In it you trade currencies with virtual money. Compared to other types of investments, forex trading have obvious benefits and advantages. Second, learn all you can about forex trading before you even think of making your first trade.
Currency trading is all about trust. Forex trading is also about earning "interest." Take your time as a beginner in Forex trading.