The forex market is open 24 hours a day from Monday morning in Asia to Friday afternoon in New York, but it is not equally active at all hours. Liquidity, volatility and spreads change as the major financial centres open and close. Knowing when each session runs, and when they overlap, helps you trade when your chosen pairs are most active and avoid the quietest periods.

The four main forex sessions

Trading is usually described in four sessions named after the main financial centres: Sydney, Tokyo, London and New York. The times below are approximate, as different sources use slightly different hours and activity builds up and fades gradually rather than switching on and off.

Sydney session

• Approximate hours: 10:00 pm to 7:00 am GMT, which is 5:00 pm to 2:00 am US Eastern Time when US clocks are on standard time.
• What to expect: the start of the trading week. Activity is generally lighter, and AUD and NZD pairs tend to be most active.

Tokyo (Asian) session

• Approximate hours: 12:00 am to 9:00 am GMT, or 7:00 pm to 4:00 am ET on US standard time.
• What to expect: JPY pairs such as USD/JPY and EUR/JPY are usually most active, along with AUD and NZD pairs. Price ranges on many European pairs are often narrower.

London (European) session

• Approximate hours: 8:00 am to 5:00 pm GMT, or 3:00 am to 12:00 pm ET on US standard time.
• What to expect: London is the largest forex trading centre, so this is typically the busiest single session. EUR, GBP and CHF pairs are particularly active, and many trends for the day begin here.

New York (North American) session

• Approximate hours: 1:00 pm to 10:00 pm GMT, or 8:00 am to 5:00 pm ET.
• What to expect: heavy activity in USD pairs, especially early in the session when it overlaps with London. Many important US economic releases come out at 8:30 am ET.

How daylight saving time shifts the sessions

Session times move when clocks change. The UK moves to British Summer Time from late March to late October, and the US moves to daylight time from the second Sunday in March to the first Sunday in November. Australia changes in the opposite direction, observing daylight saving roughly from October to April, while Japan does not use daylight saving at all.

In practice, during the northern summer the London and New York sessions open one hour earlier in GMT terms: London runs roughly 7:00 am to 4:00 pm GMT and New York roughly 12:00 pm to 9:00 pm GMT. In local time they stay the same: London still opens around 8:00 am UK time and New York around 8:00 am ET. Because the UK and US change clocks on different dates, there are a few weeks each spring and autumn when the gap between them is temporarily one hour shorter than usual. If you trade around session opens, check your platform's server time and your local time carefully during these periods.

The London–New York overlap

The period when London and New York are both open is usually the most liquid part of the trading day. It runs from about 8:00 am to 12:00 pm ET, which is 1:00 pm to 5:00 pm GMT in winter and 12:00 pm to 4:00 pm GMT in summer.

During the overlap:

• Trading volume in major pairs such as EUR/USD, GBP/USD and USD/CHF is typically at its highest.
• Spreads on major pairs are often at their tightest, because more participants are quoting prices.
• Major US economic data, often released at 8:30 am ET, can cause sharp moves.

Many short-term traders focus on this window because liquidity and movement are both high. Our guide to forex spreads explains why tighter spreads lower your trading costs.

The Tokyo–London overlap

There is a shorter overlap between the end of the Tokyo session and the London open, around 8:00 am to 9:00 am GMT in winter. Activity in JPY and EUR pairs can pick up as European traders arrive, though it is usually less intense than the London–New York overlap.

When is the forex market quietest?

• Late New York afternoon: after about 3:00 pm to 5:00 pm ET, volume usually drops off before the Sydney open.
• Around the daily rollover: close to 5:00 pm ET many brokers' daily session resets, and spreads can briefly widen.
• Weekend gaps: the market is closed from Friday evening to Sunday evening ET, so prices can open on Monday at a different level from Friday's close.
• Holidays: major bank holidays in the UK, US or Japan can reduce liquidity in the related currencies.

Quieter periods are not necessarily bad, but wider spreads and thinner liquidity can make short-term trading more expensive. Crypto pairs are an exception, since the underlying crypto markets trade 24/7; check your platform for the trading hours of each instrument.

How to choose the best time for you

1. Match the session to your pairs. Trade JPY pairs when Asia is active, EUR and GBP pairs during London, and USD pairs during New York and the overlap.
2. Match it to your schedule. The best session is one you can trade consistently and alertly. A tired trader at 3:00 am often makes worse decisions.
3. Match it to your strategy. Breakout strategies often focus on session opens, while range strategies may suit quieter periods. See forex strategies for beginners for examples.
4. Check the economic calendar. High-impact news can make any session unpredictable.

Trading sessions at Clarity FX

Clarity FX offers forex and crypto pairs on the TradeLocker platform, so you can follow each session from desktop or mobile. If you are new, a demo account is a good way to watch how different pairs behave across sessions before risking real money; see our step-by-step guide to starting forex trading and remember to apply sound risk management whatever time you trade.

Trading forex and crypto on leverage carries a high risk of loss and may not be suitable for all investors. This article is educational and not financial advice. Read our risk disclosure.