Why the forex market is open 24 hours

Understanding forex market hours and trading sessions starts with one fact that sets currencies apart from stocks: there is no single central exchange. Forex is traded over the counter through a global network of banks, brokers and institutions, so as one major financial centre closes, another is already open. That hand-off is what keeps the market running continuously from the start of the week to the end.

The trading week opens on Monday morning in the Asia-Pacific region and runs without interruption until the New York close on Friday evening. In practical terms it is commonly described as opening around Sunday 22:00 UTC (when Sydney begins) and closing around Friday 22:00 UTC. Because clocks and daylight-saving rules differ by country, the exact local time you see will shift through the year, so it is always worth confirming the hours your own broker quotes.

The market does close at weekends. Most retail brokers stop trading from late Friday until the market reopens, and prices can gap when it returns if news broke while you were unable to act. You can keep an eye on how pairs are moving as sessions roll over on our live currencies page.

The four major trading sessions

The 24-hour day is usually split into four sessions, each named after a financial hub that dominates it. Sydney opens the week and tends to be the quietest. Tokyo follows and represents the bulk of Asian trading. London is the single largest session by volume and sets the tone for the European day. New York then takes over and drives the American afternoon before the week winds down.

As approximate UTC guides, Sydney runs from around 22:00 to 07:00, Tokyo from around 00:00 to 09:00, London from around 08:00 to 17:00, and New York from around 13:00 to 22:00. These windows are illustrative and move by an hour in either direction depending on daylight saving, so treat them as a framework rather than fixed times.

Each session has a character. Asian hours are often calmer with tighter ranges, which can suit patient, range-based approaches. The London and New York sessions usually carry the heaviest volume and the widest price ranges, because that is when the largest banks and institutions are most active.

Session overlaps and why they matter

The busiest part of the trading day is when two sessions are open at once. The most important is the London-New York overlap, roughly 13:00 to 17:00 UTC, when the two largest financial centres trade simultaneously. Liquidity is at its highest, spreads on major pairs are often at their tightest, and price movement is typically at its strongest.

A second, smaller overlap occurs between Tokyo and London for a short window in the early European morning. It is less dramatic than the London-New York crossover but can still bring a pick-up in activity, particularly for yen and other Asian-linked pairs.

Higher activity is a double-edged sword. More liquidity and movement create more opportunity, but faster, larger swings also mean risk can build quickly. Leveraged forex and CFD trading carries a high risk of loss, and a volatile overlap can hit a stop-loss far faster than a quiet Asian session would. Higher volume is not the same as easier trading.

Matching pairs and news to the right session

A practical habit is to trade a currency when its home session is open. EUR/USD, GBP/USD and other European and US majors tend to be most active and most liquid during the London and New York hours. USD/JPY, AUD/USD and AUD/JPY often see their cleanest moves during the Asian session when Tokyo and Sydney are live. Trading a pair outside its core hours can mean thinner liquidity and wider spreads.

Sessions also frame economic data. Major releases are scheduled within the working day of their home country, so UK and eurozone figures land in the London session and US figures in the New York session. These are exactly the moments when volatility spikes, so checking what is due on an economic calendar before you trade helps you avoid being caught on the wrong side of a surprise.

For a wider view of how currencies sit alongside indices and commodities through the day, our markets overview shows the broader picture that session flows feed into.

Choosing the best time to trade for your routine

There is no universally best session; the right window depends on your strategy, your time zone and how much volatility you can tolerate. A trader who wants movement and tight spreads on EUR/USD will gravitate toward the London-New York overlap. Someone who prefers calmer, more contained ranges, or who can only trade in the evening, may find the Asian session a better fit.

As an illustrative example, a trader based in continental Europe might focus on the London open through the early afternoon overlap, capturing the most active hours before stepping away. A trader in East Asia might naturally work the Tokyo session, while someone in the Americas may lean into the New York hours. The aim is to match your available time to a session where your chosen pairs actually move.

Whichever window you choose, consistency matters more than chasing every hour the market is open. Trading the same sessions repeatedly lets you learn how your pairs typically behave at those times, which is far more useful than trying to be active around the clock and burning out in the process.