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The London–New York overlap: trading the busiest 4 hours
For about 4 hours each weekday, the 2 biggest forex cities trade at the same time. For a US trader, that window lands at a normal hour. Here's how to use it with a plan.
What the overlap is
London is the biggest forex center. New York is the second biggest. From about 8 am to noon ET, both are open.
That window is the overlap. It's when the most forex trading usually happens in a single stretch.
For US traders, it has one big plus: it's daytime. You don't need a 3 am alarm.
The window in Eastern Time
| Time (ET) | What's happening |
|---|---|
| 8:00 am | New York joins London. The overlap starts. |
| 8:30 am | Many big US reports come out. |
| 9:30 am | US stocks open. Index futures get busier. |
| 10:00 am | A second wave of US reports on some days. |
| ~11:00 am | The London 4 pm fix. A burst of orders. |
| ~noon | London winds down. The overlap ends. |
The clock-change weeks: the UK and US change clocks on different dates. For a few weeks in March and around late October to early November, the overlap runs an hour earlier or later in ET. Our market hours tool shows the live times.
Why it's the busiest window
More traders at once usually means 3 things:
- More movement. Prices tend to travel further, so planned moves can play out in hours, not days.
- Lower costs on big pairs. With many buyers and sellers, the Spread on EUR/USD and GBP/USD is often at its tightest.
- More news. Both Europe's afternoon and America's morning are inside it.
More movement cuts both ways. A trade can reach its target faster. It can reach its stop faster too.
Which pairs move most
The overlap favors pairs with the US dollar on one side and a European currency on the other:
- EUR/USD — see EUR/USD
- GBP/USD — see GBP/USD
- USD/CHF and USD/CAD — Canada's data often comes out at 8:30 am ET too
Gold, quoted as XAU/USD, often gets busier too, since it's priced in dollars. See XAU/USD.
Pick 2 or 3. Watching 10 pairs at once is how setups get missed.
The news inside the window
The overlap holds the US morning reports. On those days, the window changes shape:
- 8:30 am: CPI, the jobs report, jobless claims, retail sales, PPI.
- 10:00 am: some surveys and sentiment reports.
- Fed days are different. The Fed's FOMC decision is at 2:00 pm ET, after the overlap. See CPI and FOMC days.
A simple rule: no new trades from 15 minutes before a big release until 15–30 minutes after. Check the economic calendar every morning.
Splitting the overlap into 3 parts
The 4 hours aren't all the same. Many traders think of them in 3 chunks:
- 8:00–9:30: the forex warm-up. London is mid-afternoon. US news may land at 8:30.
- 9:30–11:00: the full crowd. Stocks are open too. Often the most active part.
- 11:00–noon: the wind-down. The fix, then London leaves. Moves often slow.
Knowing which chunk you're in helps you set fair targets. A target that's easy at 9:45 may be hard at 11:45.
A simple 4-hour plan
Here's one way to plan it. It's an example of a process, not a promise of results.
- 7:45 am: check the calendar. Cross out the minutes around any release.
- Mark your levels. The Asian high and low, London's high and low so far, and the last places price turned around.
- Check the bigger chart. On the 1-hour or 4-hour, higher highs and higher lows? Or lower ones? Trade with that direction.
- Wait for a candle body to close past a level. A wick poking through doesn't count.
- Stop from the chart. Past the last turning point, not a random number of pips.
- Size from the stop. Risk about 1%. Use the position size calculator or the pip value calculator.
- Stop after 2 losses, or at noon. Whichever comes first.
A math example: you risk 1 unit per trade and target 2 units. Over 4 trades, 1 win and 3 losses leaves you down 1 unit. 2 wins and 2 losses leaves you up 2. A math example, not a promise. Costs and slippage aren't in these numbers.
Fitting it around work
The overlap doesn't fit every schedule. If you work 9 to 5, try:
- 8:00–9:00 only. One focused hour before work.
- Practice on replay. Study past overlaps in the evening with TradingView's bar replay.
- Swing trades instead. Use the 4-hour chart and check in twice a day. See trading with a full-time job.
Common mistakes
- Trading all 4 hours. Fatigue builds. Pick the chunk that suits you.
- Forgetting the 8:30 news. A trade opened at 8:25 is a news trade.
- Expecting the same pace at 11:45. London is leaving. Moves often slow.
- Moving the stop because "it's the busy time." Busy doesn't mean right.
Try it today
- Open the market hours tool and confirm the overlap in your time zone.
- Pick one pair, EUR/USD is fine, on a 15-minute chart.
- Replay 5 past overlaps. Mark the 3 chunks on each.
- Write down which chunk had the clearest moves for you.
Questions
What time is the London and New York overlap?
About 8 am to noon ET on weekdays. For a few weeks in spring and fall, clock changes can shift it by an hour.
Why is the London–New York overlap so busy?
The two biggest forex centers are trading at the same time, and many US reports come out inside the window. More traders and fresh news usually mean more movement.
What pairs are best to trade in the overlap?
No pair is "best," but EUR/USD, GBP/USD, USD/CHF and USD/CAD usually see heavy activity in those hours, so many traders focus on them.
Is the overlap good for beginners?
It's a practical window for US traders because it's daytime and spreads on big pairs are often tight. Moves are faster too, so a stop and a small size matter more.
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