# Forex Trading Sessions and Liquidity Explained > How the 24-hour forex market's Asian, London and New York sessions shape liquidity, spreads and risk — and how to schedule your trades around them. Category: Learn · Author: BrokerVS Expert Team · Published: Oct 5, 2026 · Reading time: 5 min · URL: https://www.brokervs.com/insights/learn/forex-trading-sessions-liquidity-explained ## Key takeaways - Forex trades continuously from 22:00 UTC Sunday to 22:00 UTC Friday; there is no central exchange. - Trading is grouped into Asian, European (London) and North American (New York) sessions; exact hours are conventions that vary by broker. - The London–New York overlap is widely regarded as the most liquid window, with typically tighter spreads on major pairs. - Thin liquidity around the weekend close means gap risk — stops fill at the next available price, not a guaranteed level. - Test any strategy in the same sessions you plan to trade live. ## Table of contents - Why the market runs around the clock - The three major sessions - Why overlaps matter: liquidity peaks - Session risks you should plan around - Scheduling your trading around sessions - Key limits to keep in mind --- Forex never opens and closes the way a stock exchange does. Because currencies trade over the counter — directly between banks, institutions and brokers around the world — the market runs continuously from 22:00 UTC on Sunday until 22:00 UTC on Friday, and then rests over the weekend. That does not mean activity is constant, though. Liquidity moves with the working day of the financial centers that dominate the market, and those movements matter for your spreads, your execution quality and your risk. ## Why the market runs around the clock There is no single forex exchange. Trading happens across a chain of financial centers, and as one region's working day ends, another's begins. Currency trading happens continuously: as the Asian trading session ends, the European session begins, followed by the North American session, and then back to Asia. London and New York are the main trading centers, with Tokyo, Hong Kong and Singapore also important. The result is a follow-the-sun market that is always open somewhere during the working week. ## The three major sessions Retail brokers and market commentary conventionally group the day into three overlapping sessions, roughly anchored to these hours (in UTC): - **Asian session** — approximately 00:00 to 09:00 UTC. Anchored by Tokyo, with Hong Kong and Singapore active. Often the calmest period for major pairs like EUR/USD, though pairs involving the Japanese yen, Australian dollar or New Zealand dollar see more attention. - **European (London) session** — approximately 08:00 to 17:00 UTC. London is the largest single FX hub, so liquidity rises sharply as this session opens. - **North American (New York) session** — approximately 13:00 to 22:00 UTC. Overlaps London for several hours, then thins out as New York winds down and the market heads toward the Friday close. These hour boundaries are conventions, not rules. Exact session times differ slightly between brokers and data providers, and your broker's server time zone may shift them. Always check your platform rather than assuming a universal schedule. ## Why overlaps matter: liquidity peaks Liquidity is highest when the biggest centers are awake at the same time. The London–New York overlap, roughly 13:00 to 17:00 UTC, is widely regarded as the most active window of the day, because the two largest trading centers are operating simultaneously. In practice this usually shows up as tighter spreads and generally smoother order fills for major pairs. Conversely, the quietest stretch is often late in the Asian session or after New York closes, when fewer large participants are online. During thin hours, spreads on some pairs widen and price can be more jumpy on small orders. The effect is much stronger on minor and exotic pairs than on the most liquid majors — EUR/USD hardly notices, but an exotic pair can see materially wider quotes. A useful practical note: some retail brokers also widen spreads briefly around the daily rollover (around 22:00 UTC, when swaps are applied) because interbank liquidity dips at that point. If you trade around midnight server time, check how your broker handles it. ## Session risks you should plan around **Weekend gaps.** The market closes at 22:00 UTC on Friday and reopens at 22:00 UTC on Sunday. News can break over the weekend while you cannot exit a position, and the opening price can jump — this is the classic gap risk that affects open positions held across the close. Stop orders may execute at worse prices than requested, because stops fill at the next available market price. **Illiquid Friday afternoons and Monday opens.** Liquidity tails off before the Friday close and the Sunday open is shallow. Spreads tend to be at their widest there, which is exactly when gap risk is highest. **News events land in specific sessions.** US data releases typically hit early in the New York session; European data in the London morning. Spreads can widen sharply for a minute or two around major releases regardless of the session — the same mechanism described in our article on news-event spread widening. ## Scheduling your trading around sessions There is no universally "correct" session — the right window depends on your pairs and your strategy: - If you trade **major pairs** and want the tightest typical spreads, the London–New York overlap is the conventional choice. - If you trade **JPY, AUD or NZD pairs**, the Asian session is when those currencies are most in focus. - If you hold positions **overnight**, remember that swap charges are applied around 22:00 UTC and that positions carried over the weekend face gap risk that no stop-loss fully eliminates. - If you are testing a strategy on a **demo account**, test it during the same sessions you plan to trade live. A strategy that looks good in thin Asian hours may behave differently in the London–New York overlap. ## Key limits to keep in mind Session times are conventions that vary by broker and server time zone, and daylight saving shifts move them by an hour in real time. Spread behavior differs by broker, account type and instrument — the patterns above describe typical market structure, not a guarantee about any specific provider's pricing. The best check is your own platform: most brokers publish their session hours and let you observe spread behavior directly in the quotes window. The 24-hour market gives you freedom to trade whenever you want during the week. It does not guarantee that every hour is equally cheap to trade — knowing where liquidity lives is part of knowing your true total cost. ## Sources & further reading 1. [Foreign exchange market — Wikipedia](https://en.wikipedia.org/wiki/Foreign_exchange_market) --- For education and research, not personal investment advice. Trading involves risk. Broker terms and protections depend on your country, account and contracting legal entity.