Here’s a fact which sounds great in an advert: the forex market is open 24 hours a day, five days a week. Here’s the fact the advert leaves out: the market is open 24 hours a day, but the market is not awake 24 hours a day.

Picture a shopping mall with doors open around the clock. At 7 p.m., the place is packed. Every shop is busy, prices are competitive, and deals happen fast. At 3 a.m., the doors are still open, but you’ll find one security guard, a sleepy cleaner, and a coffee kiosk charging double. Technically, the mall is open. Would you do your big shopping there at 3 a.m.?

Forex works the same way. Activity rises and falls through the day as financial centres open and close around the world. The same EUR/USD trade behaves differently at 3 p.m. Dubai time than at 3 a.m. Spreads, speed and price movement all change with the clock.

In this lesson, you’ll learn the four major trading sessions, when each one opens in your time zone, which markets wake up in each session, and why the London and New York overlap brings the biggest volume of the day. You’ll also learn a few hours worth avoiding, especially as a beginner.

Coffee ready? Let’s go around the world.

Why the Market Follows the Sun

Remember from Chapter 1: forex has no central exchange. Trading happens through banks and brokers in financial centres across the globe. When a centre opens for business, its banks, funds and companies start trading. When the centre closes, activity there slows down.

As the earth turns, one centre hands over to the next. Sydney opens first. Tokyo follows. Then London. Then New York. By the time New York winds down, Sydney is waking up again, and the cycle repeats from Monday morning in Asia to Friday evening in America.

So when does each session run? Below are approximate times, shown in Dubai time (GMT+4), since many of our readers trade from the Gulf. Add or subtract hours for your own time zone.

The Four Major Sessions

Session 1: Sydney– Roughly 2 a.m. to 11 a.m. Dubai time

Sydney opens the trading week. The session is the quietest of the four, with lower volume and fewer big moves. The Australian and New Zealand dollars get most of the attention here, along with any news from Australia and New Zealand. One important detail: the weekly market open happens here. If big news broke over the weekend, prices often “gap,” or jump, from Friday’s closing price to a new level at the open. A stop loss won’t save you at the level you set. The order fills at the next available price, which sits beyond your stop.

Session 2: Tokyo– Roughly 4 a.m. to 1 p.m. Dubai time

Tokyo brings Asia fully online. Japan is one of the largest forex centres in the world, so the Japanese yen gets busy, along with pairs such as USD/JPY, EUR/JPY and AUD/JPY. Chinese economic data often lands during this session and moves the Australian dollar, since Australia sells so much to China.
Movement in the Tokyo session is often steadier. Many pairs trade in a narrow range while the market waits for Europe. Traders sometimes call this range the “Asian box,” and some strategies wait for London to break out of the box.

Session 3: London– Roughly 12 p.m. to 9 p.m. Dubai time (11 a.m. to 8 p.m. during the European summer)

Now things get serious. London handles a larger share of global forex trading than any other city in the world. When London opens, volume jumps, spreads tighten, and the Asian box often breaks in one direction. The euro, the British pound and the Swiss franc take centre stage. Economic data from the UK and the eurozone lands in the morning London time, and gold starts to wake up as well.

So what about the 3 p.m. Dubai trade from the end of Chapter 3? At 3 p.m. Dubai, London is in full swing. Banks are active, spreads are tight, and your order fills fast at a fair price. Now compare 3 a.m. Dubai. London and New York are closed, Tokyo hasn’t opened yet, and the market is running on the Sydney skeleton crew. Spreads widen, and prices sometimes jump on tiny orders.

Session 4: New York– Roughly 5 p.m. to 2 a.m. Dubai time (4 p.m. to 1 a.m. during the US summer)

New York brings the second largest forex centre online, along with the biggest stock market on earth. The US dollar is on one side of close to 9 in every 10 forex trades, so US data matters to almost everyone. Here’s what New York adds to your day, in Dubai time during the US summer:

4:30 p.m.: major US data releases, including Non-Farm Payrolls and inflation figures, usually land at 8:30 a.m. New York time.
5:30 p.m.: the US stock market opens at 9:30 a.m. New York time. Indices such as the NASDAQ 100 and the S&P 500 wake up with a jolt.
1 a.m.: New York closes at 5 p.m. local time. Brokers roll positions over to the next trading day, and swaps get charged. Remember those from Chapter 2?

In the US winter, add one hour to each of these times.

The Overlap: The Busiest Hours of the Day

Now for the headline act. For about four hours each trading day, London and New York are open at the same time.

Roughly 5 p.m. to 9 p.m. Dubai time (4 p.m. to 8 p.m. in the summer months)

Why does this window matter so much? Think about who’s trading. The two largest forex centres in the world are both active. European traders are finishing their day. American traders are starting theirs. Big banks are adjusting positions on both sides of the Atlantic. The major US data releases and the US stock market open both land inside this window.

The result is the highest volume of the day, the tightest spreads on the major pairs, and the biggest price moves. EUR/USD, GBP/USD, gold and US indices are especially active.

Quick question. You live in Dubai, work from 9 a.m. to 6 p.m., and want to trade EUR/USD after work. Which window suits you?

If you picked the evening, roughly 6 p.m. to 9 p.m., top marks. You catch the second half of the overlap, the pair is liquid, and spreads are tight. Plenty of traders in the Gulf build their whole routine around this window. Lucky timing for anyone with a desk job.

A word of warning, though. High volume brings big moves in both directions. The overlap rewards preparation and punishes guesswork. If you trade during the overlap without a plan, you’ll feel like a tourist trying to cross a busy road.
A Tricky Detail: Daylight Saving Time

Dubai doesn’t change its clocks. The UK, Europe and the US do, and they don’t change on the same dates.

The US moves its clocks forward in mid-March and back in early November. The UK and Europe move theirs on the last Sunday of March and the last Sunday of October. For a few weeks each spring and autumn, the gap between London and New York shrinks by an hour, and the overlap shifts on your Dubai clock.

The practical lesson? Always check session times against an economic calendar or a market clock tool, especially in March, October and November. Guessing the NFP release time and missing by an hour happens to almost every trader once. Once is enough.

Hours to Handle With Care

Not every hour deserves your trading capital. As a beginner, be careful with:

The daily rollover, around 1 a.m. to 2 a.m. Dubai time. Liquidity dries up, and spreads often widen sharply for several minutes.
The Monday open: Weekend news creates gaps, and spreads start wide.
Friday evening: Liquidity fades as traders close positions before the weekend, and holding over the weekend exposes you to gaps.

Major holidays. Christmas, New Year and national holidays in the US, UK or Japan thin out the market. Thin markets move strangely.
The minutes around big news. Spreads widen and prices jump before, during and right after releases such as NFP. Some prop accounts restrict trading around news, so read your account rules.

How Sessions Connect to Your Trading Plan

So how do you use all this? Match your market to the clock.

Trading the yen or the Aussie dollar? Asian hours bring the most relevant news and flow. Trading EUR/USD or GBP/USD? London and the overlap offer the best liquidity. Trading US indices? Focus on the US open and the first two hours after. Trading gold? London and New York are the busiest periods.

Then match the clock to your life. The best session in the world means nothing if you trade the session exhausted at 2 a.m. after a long day at work. Tired traders make careless trades, and careless trades cost money.

Here’s where timing matters for a Moneta Funded account. The Sprint Challenge gives you between 1 and 8 hours to hit a profit target of 0.6% to 3%. Would you start a 2 hour Sprint at 3 a.m. Dubai time, when the market barely moves? Or at 5 p.m., when the overlap begins and volume peaks? Picking your session is part of picking your strategy.

Also check when your account’s trading day resets for the daily loss limit. A daily limit resets at a set server time, and the reset rarely lines up with midnight on your own clock.

Your Homework

Before the next lesson, open a chart of EUR/USD on the 1 hour timeframe. Mark the start of the London session and the start of the overlap for the last five trading days. Look at the size of the candles in the Tokyo session, then compare them with the candles during the overlap. You’ll see the difference in about ten seconds. No lecture required.

Up Next: Chapter 5

Stay tuned, because the next chapter tackles the most misunderstood tool in trading: leverage. We’ll compare 1:30 and 1:100 leverage on a $10,000 account, show you how margin works, and explain why the same 1% move feels like a scratch at one leverage level and a knockout at another. If you’ve ever wondered why the One-Step and Two-Step challenges use different leverage, you’ll find the answer there. Leverage builds trading careers and ends them, so this is one class you won’t want to skip.

Disclaimer: This content is for educational purposes only and does not constitute financial advice. Trading forex and CFDs involves significant risk of loss. Session times are approximate and shift with daylight saving changes. Moneta Funded accounts use simulated capital for evaluation purposes.