A complete, practical guide to understanding forex market hours: what time does forex open, the four global trading sessions, overlapping periods, and how to use this knowledge to optimise your trading strategy and manage risk effectively.
The foreign exchange market is unique among financial markets because it operates 24 hours a day, five days a week (Sunday evening to Friday evening in the US time zone). Unlike stock exchanges with fixed opening and closing bells, forex trading continues around the clock across major financial centres in different time zones.
The global forex market averages over $9.6 trillion in daily trading volume, according to the Bank for International Settlements (BIS) Triennial Survey 2025. This immense activity is spread across four primary sessions: Sydney, Tokyo, London, and New York. Understanding when each session opens and closes is essential for traders to optimise their strategies, manage risk, and take advantage of volatility.
The question "a que hora abre forex" (what time does forex open) is one of the most common queries among traders, especially beginners. The answer depends on your time zone, but the market consistently opens on Sunday at 10:00 PM GMT (5:00 PM EST) and closes on Friday at 10:00 PM GMT (5:00 PM EST). The market never truly "closes" in the traditional sense; trading simply shifts from one centre to another as the day progresses.
ⓘ Key insight: The forex market does not have a single opening time—it opens progressively across the globe. When one session ends, another begins, ensuring continuous trading throughout the business week. This is why forex is often called the "global market."
Forex trading is organised around four primary sessions, each corresponding to a major financial centre. Each session has distinct characteristics in terms of liquidity, volatility, and the currency pairs that are most active.
Opens: 10:00 PM GMT (Sunday) – Closes: 7:00 AM GMT
The Sydney session is the first to open each week. It is typically the quietest session, with lower volatility and narrower ranges. However, it is important because it sets the tone for the week and can react to news from Australia and New Zealand. The Australian Dollar (AUD) and New Zealand Dollar (NZD) are the most active pairs.
Opens: 12:00 AM GMT – Closes: 9:00 AM GMT
The Tokyo session brings increased liquidity, especially for JPY pairs. It overlaps with the Sydney session for the first few hours, creating a period of moderate activity. Economic data from Japan, China, and the broader Asia-Pacific region can cause sharp moves. USD/JPY, EUR/JPY, and AUD/JPY are heavily traded during this session.
Opens: 8:00 AM GMT – Closes: 5:00 PM GMT
The London session is the most liquid session, accounting for roughly 35% of global forex turnover. It overlaps with the Tokyo session (8:00 AM – 9:00 AM GMT) and the New York session (1:00 PM – 5:00 PM GMT). The London session is known for strong trends, tight spreads, and high volatility. All major currency pairs, especially EUR/USD and GBP/USD, see their largest moves during this time.
Opens: 1:00 PM GMT – Closes: 10:00 PM GMT
The New York session is the second most liquid and overlaps with the London session for about four hours. It is heavily influenced by US economic data, including Non-Farm Payrolls, CPI, and GDP. USD pairs are the most active, and volatility often spikes around US data releases. The session closes at 10:00 PM GMT (5:00 PM EST), concluding the trading week on Friday.
The Federal Reserve and other central banks provide economic data that influences these sessions. For instance, the Federal Reserve's interest rate decisions and FOMC minutes are released during the New York session, creating significant volatility. As the CFTC notes in its investor education materials, "market participants should be aware of economic data release schedules and their potential impact on currency prices."
The most dynamic trading periods occur when two sessions overlap. During these times, market participants from both regions are active simultaneously, leading to higher trading volume, tighter spreads, and often increased volatility.
This one-hour window is relatively short but can see increased activity in JPY and cross-pairs. It is often used by traders who want to catch early London momentum following Asian session developments.
This is the most significant overlap of the week, lasting four hours. It accounts for the highest trading volume and is the preferred time for most professional traders. Both major financial centres—London and New York—are open, and a wide range of economic data is released. This period is ideal for day traders and scalpers looking for strong directional moves.
The BIS Triennial Survey 2025 shows that trading volume peaks during the London-New York overlap, with the EUR/USD pair alone accounting for about 23% of all transactions. This concentration of liquidity makes it easier to enter and exit positions with minimal slippage.
ⓘ Pro tip: For day traders, the London-New York overlap is often the best time to trade. The combination of high liquidity and significant news flow creates opportunities for capturing strong trends. However, increased volatility also means larger potential losses, so risk management is critical.
Choosing the right time to trade depends on your trading strategy, currency pairs of interest, and personal availability. Here is a guide to help you match your trading style to the most suitable session:
Best time: London-New York overlap (1:00 PM – 5:00 PM GMT).
High liquidity, tight spreads, and strong trends provide frequent opportunities for short-term trades.
Best time: London session (8:00 AM – 5:00 PM GMT) or NY session (1:00 PM – 10:00 PM GMT).
These sessions provide clear daily ranges and enough volatility to capture multi-day moves.
Best time: Any session, but London and NY are preferred for entry signals.
Focus on weekly and monthly trends rather than intraday timing. Consider session liquidity for entry and exit.
Best time: Around major data releases (e.g., US NFP, UK CPI, ECB announcements).
Check the economic calendar for high-impact events and trade the subsequent volatility.
Best time: 24/5, but tune parameters for session-specific volatility.
Many EAs perform differently across sessions; consider disabling during low-liquidity Asian hours if not profitable.
Best time: Follow the session times of the signal provider you copy.
Ensure your account is active during their trading hours to replicate trades accurately.
The FINRA (Financial Industry Regulatory Authority) provides investor education that reminds traders that "trading during periods of low liquidity can result in wider spreads and increased slippage." This is especially relevant during the Sydney session or late New York session when many European traders have closed their positions for the day.
Daylight saving time (DST) can complicate forex trading hours because different countries adjust their clocks on different dates. This can shift session opening and closing times relative to your local time.
The UK (London) and the US (New York) observe DST but on different schedules:
During the periods when one region is on DST and the other is not, the London-New York overlap shifts by one hour. For example, in March, the US switches to DST before the UK, so the overlap starts at 2:00 PM GMT instead of 1:00 PM GMT. Traders must adjust their schedules and trading strategies accordingly to avoid missing the best trading windows.
The NFA (National Futures Association) recommends that traders "familiarise themselves with the trading hours of their chosen broker and any changes that may occur due to daylight saving time." Most brokers display session times in GMT (UTC) to standardise references, making it easier to track regardless of local DST changes.
ⓘ Important: Always use GMT (UTC) as your reference for forex trading hours. Convert to your local time using the current GMT offset, and update your schedule when DST changes occur in the UK or US to ensure you are trading during active periods.
The table below compares the four major forex sessions across key characteristics, helping you decide when to trade based on your strategy and preferences.
| Session | GMT Time | EST Time | Volume | Volatility | Active Pairs | Best For |
|---|---|---|---|---|---|---|
| Sydney | 10:00 PM – 7:00 AM | 5:00 PM – 2:00 AM | Low | Low-Moderate | AUD/USD, NZD/USD | Range trading, low-risk |
| Tokyo | 12:00 AM – 9:00 AM | 7:00 PM – 4:00 AM | Moderate | Moderate | USD/JPY, EUR/JPY | JPY pairs, range trading |
| London | 8:00 AM – 5:00 PM | 3:00 AM – 12:00 PM | Highest (35%) | High | All majors, EUR/USD, GBP/USD | Trend following, day trading |
| New York | 1:00 PM – 10:00 PM | 8:00 AM – 5:00 PM | High (25%) | High | USD pairs, all majors | News trading, volatility |
| London-NY Overlap | 1:00 PM – 5:00 PM | 8:00 AM – 12:00 PM | Peak | Highest | All majors | Scalping, day trading, volume |
Note: All times are in GMT/UTC and EST. Adjust for DST changes in your region and your broker's specific trading hours.
Use this checklist to determine which trading sessions and times best fit your schedule, strategy, and risk tolerance.
Trading foreign exchange (forex) carries a high level of risk and may not be suitable for all investors. The use of leverage can work against you as well as for you, and losses can exceed your initial investment.
Market hours are not a guarantee of profitability. While trading during high-liquidity periods can improve execution, it does not eliminate the risk of loss. Volatility, especially during news releases, can move prices rapidly against your position, leading to significant losses.
The CFTC and NFA have issued warnings about the risks of trading during volatile periods. According to the CFTC's retail forex fraud education materials, "unexpected market events can cause large price swings, and you may not be able to close your position at a favourable price." This is especially relevant during session overlaps and major economic announcements.
Additional risks specific to trading hours include:
This guide is for educational and informational purposes only. It does not constitute financial, legal, or tax advice. Always conduct your own research, verify current market conditions and session times directly with your broker, and consult a qualified professional for advice tailored to your situation. Never trade with money you cannot afford to lose.
The forex market opens on Sunday at 5:00 PM EST (10:00 PM GMT) with the Sydney session. It closes on Friday at 5:00 PM EST (10:00 PM GMT). The market operates 24 hours a day, five days a week across four major trading sessions: Sydney, Tokyo, London, and New York.
The four major forex trading sessions are: Sydney (10:00 PM – 7:00 AM GMT), Tokyo (12:00 AM – 9:00 AM GMT), London (8:00 AM – 5:00 PM GMT), and New York (1:00 PM – 10:00 PM GMT). These sessions overlap at certain times, creating periods of higher liquidity and volatility.
The best time to trade is during session overlaps—especially London-New York overlap (1:00 PM – 5:00 PM GMT) and Tokyo-London overlap (8:00 AM – 9:00 AM GMT). These periods have the highest trading volume, tighter spreads, and more significant price movements.
The market opens at 10:00 PM GMT (Sunday) and closes at 10:00 PM GMT (Friday). To convert to your local time, add or subtract your time zone offset from GMT. For example, Eastern Time (EST) is GMT-5, so the market opens at 5:00 PM EST on Sunday.
Daylight saving time can shift session opening times by one hour, but the market remains open 24/5. The UK and US adjust on different dates, which can temporarily alter overlap periods. Always check the current GMT offset for your region and monitor broker announcements.
The London session accounts for approximately 35% of global forex trading volume, making it the most liquid session. It overlaps with both the Asian and US sessions, creating periods of high volatility. The Bank of England and major financial institutions based in London also influence currency movements.
Outside peak hours, liquidity is lower, spreads are wider, and price movements can be more erratic. During the Asian session, volatility is typically lower, but economic data from Japan and Australia can cause sudden spikes. Low liquidity also increases slippage risk during news releases.
Yes, forex trades 24 hours a day from Sunday 10:00 PM GMT to Friday 10:00 PM GMT through the four global sessions. However, not all hours offer the same liquidity or volatility. Weekend trading is not available as the interbank market is closed.