People like to say the forex market never sleeps. That’s true in the sense that you can trade currencies around the clock from Sunday evening to Friday evening (New York time). It’s not true in the sense that every hour is the same. Some hours are busy and liquid; others are so quiet that spreads widen and charts drift sideways.
The rhythm comes from four financial centres handing the market over to each other as the day moves around the globe.
The four sessions
Times below are approximate and shown in GMT/UTC. Daylight saving shifts them by an hour at different points of the year in Europe, the US and Australia, so check your platform’s clock.
| Session | Roughly (UTC) | Pairs that tend to be active |
|---|---|---|
| Sydney | 21:00 – 06:00 | AUD/USD, NZD/USD |
| Tokyo | 23:00 – 08:00 | USD/JPY, AUD/JPY, EUR/JPY |
| London | 07:00 – 16:00 | EUR/USD, GBP/USD, EUR/GBP, USD/CHF |
| New York | 12:00 – 21:00 | EUR/USD, USD/CAD, GBP/USD |
Sydney and Tokyo
The week opens in the Asia-Pacific region. Movement is usually measured, with the Australian and New Zealand dollars and the yen doing most of the work. Economic data from Japan, China and Australia can still cause sharp moves, so “quiet” doesn’t mean “safe”.
London
London is the largest forex centre in the world, and its open is often when the day’s direction gets set. Volume jumps, spreads on the major pairs tighten, and breakouts from the overnight range are common.
New York
US data releases — jobs, inflation, central bank decisions — land during the New York morning, and they move almost every pair that includes the dollar. Activity fades in the afternoon once London closes.
The overlap that matters most
For about four hours, roughly 12:00 to 16:00 UTC, London and New York are open at the same time. This is typically the most liquid window of the day. For short-term traders it offers tight spreads and real movement; for everyone else it’s simply the time when news has the biggest impact.
The Tokyo–London overlap is much shorter and thinner, but it can matter for yen and euro crosses.
Practical takeaways
- Trade pairs during the hours when their home markets are open. EUR/USD at 3 a.m. London time rarely does much.
- Expect wider spreads around the daily rollover (late New York afternoon) and on Sunday’s open. A 1-pip spread can briefly become 5 or more — if pips are still fuzzy, read our pip explainer first.
- Check the economic calendar before the London and New York opens, and be careful with large positions into major releases. A fast move plus high leverage is the classic recipe for a margin call.
- Weekend gaps are real. Price on Sunday evening can open far from Friday’s close.
Stock and index traders have a similar clock to watch: the US cash session for the S&P 500 and Nasdaq-100 runs from 9:30 a.m. to 4 p.m. Eastern Time, and a lot of currency volatility clusters around it.
You’ll find more on currency pairs in our forex section.
