The forex market runs 24 hours a day, five days a week, but that doesn't mean every hour is equally good for trading. Liquidity and price volatility shift depending on the Trading Session, or "operating hours," of the four major global financial centres: Sydney, Tokyo, London, and New York. This article explains when each session opens and closes in GMT/UTC, which sessions overlap to create the highest liquidity windows, and which hours tend to suit different trading styles.
What Is a Forex Trading Session
A forex trading session is the block of hours during which banks, financial institutions, and institutional investors in a given region are actively trading currencies. Because forex has no single central exchange and trades over-the-counter across the globe, activity effectively hands off from one time zone to the next, starting in Australia (Sydney), moving to Japan (Tokyo), then Europe (London), and finally the United States (New York), before cycling back to Sydney on the next trading day.
When two or more major financial centres are open at the same time, more orders flow into the market, liquidity rises, spreads tighten, and price movement tends to be clearer than during periods when only one session is active.
The 4 Major Forex Sessions and Their GMT/UTC Hours
The table below summarises the opening and closing hours of each session in GMT/UTC, based on standard market hours commonly used across trading platforms and brokers. Convert these to your own local time zone before planning your trading schedule.
| Session | Hours (GMT/UTC) |
|---|---|
| Sydney | 22:00–07:00 |
| Tokyo | 00:00–09:00 |
| London | 08:00–17:00 (07:00–16:00 during DST) |
| New York | 13:00–22:00 |
Note: The UK and the US observe Daylight Saving Time (DST) for part of the year, which shifts the London and New York session hours by about one hour depending on the month. Always check current market hours on your trading platform or with your broker before relying on these figures.
Sydney Session
The first session to open in the daily cycle. Liquidity is relatively low compared with other sessions, making it more relevant for pairs involving AUD and NZD, such as AUD/USD and NZD/USD.
Tokyo Session
Represents the Asian trading block, with moderate liquidity. Pairs involving JPY, such as USD/JPY and EUR/JPY, tend to see the most movement, along with economic data from China and Japan that often affects Asia-Pacific currency pairs.
London Session
Widely considered the session with the highest trading volume of the day, since London is one of the world's largest financial centres. Major pairs such as EUR/USD, GBP/USD, and XAU/USD (gold) tend to see their clearest moves during this window.
New York Session
The US session regularly features major economic releases, such as Non-Farm Payrolls (NFP), CPI data, and FOMC meeting outcomes, which often drive higher volatility in USD-denominated pairs.
Session Overlaps: When Liquidity Peaks
When two sessions are open at the same time, the market tends to be at its busiest, since banks from different regions are sending orders simultaneously. There are two overlap windows worth knowing.
- Sydney–Tokyo overlap: roughly two hours as Tokyo opens while Sydney is still active. Liquidity ticks up slightly compared with the Sydney session alone, and it's relevant for Asia-Pacific pairs.
- London–New York overlap: roughly four hours (13:00–17:00 GMT/UTC), when the New York session opens while London is still active. This is generally the highest-liquidity, highest-volume window of the trading day, spreads on major pairs are typically at their tightest, and price volatility tends to be most pronounced.
For traders who work standard daytime hours, the London–New York overlap often ends up being the most practical window to trade, since it falls in the afternoon or evening in most Western time zones and coincides with the market's highest liquidity.
Which Hours Suit Your Trading Style
There's no single "best" time to trade, since it depends on your strategy and the currency pairs you focus on. As a general guide:
- Trading major pairs (EUR/USD, GBP/USD, XAU/USD): the London–New York overlap (13:00–17:00 GMT/UTC) generally offers the best liquidity and clearest price direction.
- Trading Asian pairs (USD/JPY, AUD/USD): the Tokyo session (00:00–09:00 GMT/UTC) tends to be more relevant.
- Scalpers who need high short-term volatility: typically favour overlap windows, where spreads are tight and price moves quickly.
- Swing and position traders holding trades overnight: timing matters less, but it's still worth knowing when major data releases are scheduled in order to manage risk.
What to Watch Out for Around Session Timing
1. Major Economic Releases Can Widen Spreads Suddenly
Around major US data releases such as Non-Farm Payrolls (NFP), CPI, or FOMC meeting outcomes, which typically fall during the New York session, prices can move dozens to hundreds of pips within minutes. Spreads may widen temporarily, and the risk of slippage (the executed price differing from the requested price) increases. New traders should be extra cautious, or avoid opening new positions in the minutes immediately before and after a major release.
2. Transition Periods Between Sessions Can See Thin Liquidity
The window at the end of the New York session and the start of the Sydney session tends to have thinner liquidity and wider-than-usual spreads. This period is generally less suited to opening new positions, particularly for scalping strategies.
3. Weekend Gaps
The forex market closes from Friday evening until Sunday evening (in most time zones). When the market reopens on Monday, prices can gap from Friday's closing level, especially if significant news breaks over the weekend. Traders holding positions over the weekend should plan their risk management in advance.
Conclusion
The forex market is divided into four major sessions, Sydney, Tokyo, London, and New York, each with different liquidity levels and standout currency pairs. The London–New York overlap is generally the highest-liquidity window of the day and tends to be the most practical time for many traders to be active. Whichever hours you choose to trade, the key is managing risk properly, using stop losses consistently, and staying extra alert around major economic releases.
Frequently Asked Questions (FAQ)
What days is the forex market open?
The forex market opens Sunday evening (when the Sydney session begins) and closes Friday evening (when the New York session ends), for a total of five trading days a week. It's closed on Saturdays and most of Sunday.
Which overlap is best for trading major pairs?
The London–New York overlap, roughly 13:00–17:00 GMT/UTC, generally sees the highest liquidity and trading volume, making it well suited to major pairs like EUR/USD, GBP/USD, and gold (XAU/USD).
Why do London and New York session hours shift during the year?
Because the UK and the US both observe Daylight Saving Time twice a year, the local clock hours of these sessions shift by about an hour for part of the year relative to regions that don't observe DST.
What's the best time for a beginner to start trading?
Beginners generally benefit from practising during periods when the market is liquid but not excessively volatile, such as the early London session or the London–New York overlap. Avoid opening positions in the minutes before and after major economic releases, since prices can move sharply and unpredictably.
References: Babypips – Forex Market Hours, CompareForexBrokers – Forex Trading Hours 2026
