
The foreign exchange (forex) market operates 24 hours a day, five days a week, allowing traders from around the world to participate at any time. The market is divided into different trading sessions, primarily based on the major financial centers around the globe. Two key sessions are the London session and the New York session.
- London Session: The London forex market session is considered one of the most important sessions because London is a major financial hub. It typically opens at 8:00 AM GMT (Greenwich Mean Time), which is around 3:00 AM Eastern Standard Time (EST). The opening of the London session sees a significant increase in trading volume as traders in Europe, including major banks, financial institutions, and hedge funds, start their trading day. This increased activity often results in higher volatility and liquidity in the market.
- New York Session: The New York forex market session is also a crucial session as it includes the trading activities of Wall Street, the financial center of the United States. The New York session typically opens at 1:00 PM GMT, which is around 8:00 AM Eastern Standard Time (EST). This session’s opening coincides with the closing of the London session, creating an overlap period where both sessions are active simultaneously. This overlap usually lasts for about four hours until the London session ends. During this period, there is a substantial increase in trading volume as traders from both London and New York are actively participating in the market. This overlap results in higher liquidity and often presents trading opportunities due to increased price movements.
The time difference between London and New York allows for the opening and closing of these sessions at different times. This ensures that the forex market remains open continuously, providing traders with the flexibility to trade during their local business hours. The overlapping period between the London and New York sessions is particularly important because it combines the trading activities of two major financial centers, leading to higher trading volume and increased market dynamics.
It’s important to note that while the London and New York sessions are significant, other sessions, such as the Asian session (Tokyo session), also contribute to forex market activity. The Tokyo session opens before the London session, and its closing coincides with the start of the London session, creating another overlap period.
Understanding the timings and overlaps of these sessions is crucial for traders as it helps them identify optimal trading times, take advantage of increased liquidity and volatility, and align their trading strategies accordingly.

