Forex Trading Sessions Explained: London, New York and the Overlap

The forex market is open 24 hours a day, five days a week — but treating all 24 hours as equal is one of the fastest ways to bleed an account. Liquidity, spreads and price movement swing dramatically depending on which financial centre is awake. Understanding forex trading sessions is how you stop trading against a dead market and start trading when the money is actually moving.

This guide breaks down the four sessions, shows you with real numbers why the London–New York overlap dominates, and tells you which pairs suit which hours — so you can build a schedule around your own time zone instead of staring at flat charts. If you want the structured version of everything below, our advanced forex trading course teaches session timing as part of a full strategy framework.

The four forex trading sessions, in one view

Because the currency market has no single physical exchange, it runs as a relay: as one financial centre closes, the next opens. The four major forex market hours blocks are the Sydney, Tokyo (Asian), London (European) and New York (US) sessions. Each has its own liquidity profile, its own dominant currencies and its own personality.

The table below lists standard-time (GMT) hours and the US Eastern equivalent, plus what each session is known for. Treat the GMT column as a winter reference — daylight saving shifts it, which we cover further down.

Source: Dukascopy Bank and CompareForexBrokers, 2026 (standard-time reference).

What to do with this: find the row that lands inside your waking hours, note the pairs listed there, and build your watchlist around them. A trader in New York gets the overlap over breakfast; a trader in Singapore is best placed for the Tokyo session and the Tokyo–London handover.

Which forex session is the best to trade?

For most traders, the best time to trade forex is the London–New York overlap, roughly 13:00 to 17:00 GMT (08:00 to 12:00 ET). Both of the world’s largest FX centres are open at once, so volume is highest, spreads are tightest, and price moves are large enough to make a defined-risk trade worth the effort.

That said, "best" is not universal. If you trade breakouts and momentum, the overlap is your window. If you trade quiet ranges with tight stops, the Asian session may suit you better precisely because it moves less. The right answer depends on your strategy, your pairs, and — bluntly — the hours you can stay at the screen without forcing trades.

It helps to separate two ideas that beginners blur together: liquidity and volatility. Liquidity is how easily you can get in and out at a fair price; volatility is how far price travels. The overlap gives you both at once, which is rare. Analytics from FXLIQUIDITY, cited in 2026, put the optimum liquidity points at roughly 10:00 and 15:00 London time — the London open and the middle of the overlap. Trade when liquidity is deep and your spread cost shrinks; trade when volatility is high and your target is reachable. The overlap is simply where those two lines cross.

Why the London–New York overlap moves the most

The overlap dominates for a simple reason: that is when the most capital is being deployed. The forex market turns over enormous sums, and a disproportionate share of it flows through these four hours.

Source: BIS Triennial Central Bank Survey, 2022 ($7.5tn daily turnover; UK 38% venue share); OANDA, 2026 (overlap volume).

Two of those numbers explain everything. Global daily turnover hit US$7.5 trillion in the last BIS survey, and the United Kingdom alone books 38% of it — more than the United States (29.3%) and far more than any Asian centre. When London’s liquidity is still on the book and New York’s desks come online, you get the deepest order flow of the day stacked in one window.

There is a second driver: timing of news. Most market-moving US releases — non-farm payrolls, CPI, and rate decisions — land at the start of the New York session, inside the overlap. That is exactly why the overlap produces the sharpest moves, and why trading through those major economic data releases demands wider stops and a plan.

Depth of liquidity does something else that matters to your bottom line: it tightens spreads. When two major centres are quoting the same pair, the gap between bid and ask narrows, so your cost to enter and exit falls. Trade EUR/USD in the overlap and you often pay a fraction of the spread you would pay in the thin hours after New York closes. Over hundreds of trades, that saved spread is real money — a reason to prefer busy hours even before you consider the extra movement.

Do not ignore the Tokyo–London handover

There is a quieter but useful window earlier in the day: the brief overlap around 08:00–09:00 GMT as Tokyo closes and London opens. It often produces the first meaningful European move and can set the directional bias for the whole London session. It will not match the afternoon overlap for size, but for European-based traders it is a clean, tradeable start to the day. What to do with it: use the early London move to read direction, then trade the overlap with that context in hand.

How much bigger are the moves? Volatility by session

"More volatile" is easy to say and hard to act on. Here is what it looks like in pips. The chart shows the average daily range for EUR/USD across the three main sessions — the single most-traded pair in the world.

The London session moves EUR/USD nearly three times as far as the Asian session on an average day. For a trader targeting a 30-pip move, the Asian session leaves little room after spread and stop; the London and New York hours give the trade space to work.

GBP/USD is even more energetic

Sterling swings harder than the euro across every session: roughly 35–50 pips in the Asian session, but 100–150 pips in London and 80–120 in New York. More range means more opportunity and more risk — which is why position sizing matters more, not less, during high-volatility hours. What to do with this: size your stop to the session, not to a fixed pip count you carry across all hours.

What currency pairs should you trade in each session?

The rule of thumb is to trade the currencies whose home market is open, because that is when their liquidity and news flow peak. Matching the pair to the clock keeps you in tight spreads and away from thin, jumpy conditions.

• Tokyo (Asian) session: yen and commodity crosses — USD/JPY, AUD/USD, NZD/USD and AUD/JPY, helped by Australia–Japan trade links.
• London session: the European majors — EUR/USD, GBP/USD, USD/CHF and EUR/GBP see their heaviest flow here.
• New York session: US-dollar crosses come alive — USD/CAD and USD/MXN in particular, alongside a still-active EUR/USD during the overlap.

If you are still deciding what to trade in the first place, start with the major and minor currency pairs and stick to one or two until your routine is consistent. Trading an exotic pair in the wrong session is how beginners get quietly taxed by the spread.

The daylight-saving trap that breaks your session clock

Here is the catch most session tables ignore: Sydney, London and New York all observe daylight saving time, but on different dates — and Tokyo does not observe it at all. So a session table quoted in GMT is only correct for part of the year.

During the transition windows — roughly March to April and October to November — the clocks in different centres shift out of their usual alignment. The overlap does not disappear, but its GMT timestamp moves by an hour, and traders who rely on a hard-coded schedule can arrive early or late for weeks.

The fix is to anchor your routine to a session-aware clock or your broker’s server time rather than a memorised GMT figure, and to re-check the alignment every spring and autumn. It is a small habit that prevents a frustrating month of mistimed sessions.

Building a session-aware trading routine

Knowing the sessions is theory; turning it into a routine is the edge. Three practical moves separate traders who use the clock from those who fight it.

Pick your window and defend it. Decide which session fits your time zone and lifestyle, then trade it consistently rather than dipping in and out of all four. Depth beats breadth — you learn a session’s rhythm only by trading it repeatedly.

Mind the calendar, not just the clock. Activity is not even across the week: Wednesday and Thursday tend to show the highest, most consistent movement, anchored by central-bank and jobs data, while Monday is usually the lowest-volume day. Plan your heavier trading for mid-week.

Match your timeframe to your session. A scalper needs the overlap’s liquidity; a swing trader can enter during a quiet Asian session and let a higher-timeframe idea play out. If that trade-off is new to you, our guide on how to match your chart timeframe to the session shows how the two decisions fit together.

Put it together with a concrete case. A trader in London wakes to the tail of the Asian session, watches the 08:00 open set direction, and takes the meat of the move in the 13:00–17:00 overlap — a natural full-day fit. A trader on the US East Coast has it even easier: the overlap runs 08:00–12:00 their time, right over the start of the working day. A trader in Sydney or Singapore, by contrast, is asleep during the overlap, so forcing those hours means wrecking their sleep — a far better plan is to specialise in the Tokyo session and its yen pairs. The lesson is not that one clock is right; it is that you build the routine around the session your geography actually gives you.

Frequently asked questions

Trading forex involves substantial risk of loss and is not suitable for every investor. This article is educational content, not investment advice.