Forex Market Hours: Trading Sessions and Opening Times Explained

The foreign exchange market is the largest financial market in the world, with roughly $7.5 trillion in daily volume as of 2026. Unlike equities markets, which operate on defined exchange hours, forex runs 24 hours a day, five days a week — opening in Sydney late Sunday evening and closing in New York on Friday afternoon.

That continuous structure is both the appeal and the complication of forex. With markets open around the clock, traders can operate on their own schedule. But not every hour offers the same opportunity. Volume, volatility, and spreads vary significantly depending on which regional session is active — and understanding those dynamics is a foundational piece of forex trading.

This guide covers the four major trading sessions, how they overlap, how to think about session timing for different currency pairs, and what to expect during key economic events.

The Four Major Trading Sessions

Forex trading activity is structured around four major regional sessions, each centered on a global financial hub. Sessions overlap at the edges, which is where the bulk of daily trading volume concentrates.

Sydney Session. The forex trading week begins in Sydney at 10:00 PM GMT on Sunday evening. The Sydney session is the quietest of the four — volume is comparatively low, and spreads on major pairs tend to be wider than during more active sessions. AUD and NZD pairs see their most active trading here, as do cross-rates involving Asian currencies.

Tokyo Session. The Tokyo session opens at midnight GMT and runs through 9:00 AM GMT. Volume picks up meaningfully once Tokyo is active, driven by Japanese institutional flow and regional corporate hedging. USD/JPY, EUR/JPY, and other JPY crosses see their strongest activity during this window. AUD/JPY is often particularly active as Sydney and Tokyo overlap.

London Session. The London session opens at 8:00 AM GMT and runs until 4:00 PM GMT, and it's the largest of the four by volume. Roughly 40% of all daily forex transactions occur during London hours. EUR, GBP, and CHF pairs see their most active trading here, and major news releases from the ECB, Bank of England, and other European central banks drive meaningful volatility.

New York Session. The New York session opens at 12:00 PM GMT and runs until 9:00 PM GMT, overlapping with London for the first four hours. This overlap is the highest-volume window of the entire trading day. Major USD pairs — EUR/USD, GBP/USD, USD/JPY, USD/CHF — see their most active trading during the London–New York overlap. U.S. economic data releases (NFP, CPI, FOMC) land during New York hours and drive significant market movement.

Session Times at a Glance

For quick reference, here are the standard session times in GMT:

• Sydney: 10:00 PM – 7:00 AM GMT
• Tokyo: 12:00 AM – 9:00 AM GMT
• London: 8:00 AM – 4:00 PM GMT
• New York: 12:00 PM – 9:00 PM GMT

These times shift by one hour when daylight saving time changes in the U.S., U.K., and Australia at different points in the year. Sydney and New York in particular have non-aligned DST schedules, so the exact overlap windows can shift by an hour depending on the time of year.

Session Overlaps and Why They Matter

The most active trading windows occur when two sessions are open simultaneously. During overlaps, institutional participants from both regions are active, liquidity deepens, spreads tighten, and volatility typically increases.

Tokyo–London Overlap (8:00 AM – 9:00 AM GMT). A one-hour window where Asian session positioning is handed off to European traders. Volume is moderate, but this window often sets the tone for the London session, particularly for GBP and EUR pairs.

London–New York Overlap (12:00 PM – 4:00 PM GMT). The highest-volume window of the trading week. European and North American institutional traders are both active, U.S. economic data often lands during this window, and major USD pairs see their deepest liquidity. For most discretionary forex traders, this is the prime trading window.

Sydney–Tokyo Overlap (12:00 AM – 7:00 AM GMT). The longest overlap of the day, though volume remains lower than the European–American windows. AUD/JPY and NZD/JPY are the most actively traded pairs during this window.

Matching Sessions to Currency Pairs

Different currency pairs have meaningfully different activity profiles depending on which session is active.

EUR/USD and GBP/USD see their strongest activity during the London and London–New York overlap. Volume during Asian hours is comparatively thin, and spreads can widen meaningfully.

USD/JPY and JPY crosses are most active during Tokyo hours and the Tokyo–London overlap. New York hours also see strong JPY activity, particularly around U.S. economic data.

AUD/USD and NZD/USD are most active during Sydney and Tokyo hours, with secondary activity during London. These pairs tend to have thinner liquidity during New York hours.

USD/CAD tracks U.S. economic data closely and sees its most active trading during New York hours, often driven by oil price movements and U.S.–Canada economic divergence.

Exotic pairs (involving currencies like TRY, ZAR, MXN) often see their most active trading during the session corresponding to their home market, with significantly wider spreads during off-hours.

Major News Events and Session Timing

A significant portion of intraday volatility in forex is driven by scheduled economic releases. Understanding when major releases land helps traders position around or avoid these windows.

U.S. releases — Non-Farm Payrolls, CPI, FOMC decisions, and other major U.S. data typically land at 12:30 PM or 2:00 PM GMT during the London–New York overlap.

European releases — ECB rate decisions, German CPI, and eurozone data land during London hours, typically between 8:00 AM and 12:00 PM GMT.

U.K. releases — Bank of England rate decisions and U.K. inflation data land during London hours, typically at 7:00 AM or 12:00 PM GMT.

Japanese releases — BoJ decisions and Japanese economic data land during Tokyo hours, typically between midnight and 5:00 AM GMT.

High-impact releases can trigger immediate moves of 50–100 pips in major pairs within seconds. Traders who want to avoid this volatility typically flatten positions before known releases. Traders who want to trade the volatility need to account for widened spreads, potential slippage, and faster-than-normal price action.

The Weekend Gap

Forex markets close at 9:00 PM GMT on Friday and reopen at 10:00 PM GMT on Sunday. During the weekend close, the market is unavailable for trading — but events over the weekend (geopolitical news, unexpected central bank actions, major economic developments) can cause meaningful gaps when markets reopen.

Traders holding positions over the weekend accept this gap risk. On most weekends, the Sunday open is within a few pips of the Friday close. But in weeks following major geopolitical events or central bank surprises, gaps of 50+ pips at the Sunday open are not uncommon.

Some prop firms restrict weekend holding to reduce exposure to gap risk. Vanta Trading allows weekend holding with no restrictions — traders on the platform can trade their strategy on their own terms, including holding positions through the weekend close if their system calls for it.

When to Trade

The "best" time to trade forex depends entirely on your strategy, your schedule, and the pairs you trade.

Day traders and scalpers typically focus on the London–New York overlap, where liquidity is deepest and price action is most consistent.

Swing traders are less sensitive to session timing since they hold positions across multiple sessions and aren't optimizing for short-term spread or volatility conditions.

Algorithmic traders often prioritize session-specific strategies, trading different pairs during different sessions based on volatility and liquidity profiles.

News traders structure their entire schedule around scheduled releases, often sitting out entire sessions that don't contain meaningful data.

What matters most is consistency and matching session timing to strategy. Trading EUR/USD during the Sydney session, when liquidity is thin and the pair is largely quiet, is a different activity than trading EUR/USD during the London–New York overlap. The pair might technically be available in both windows, but the trading conditions are meaningfully different.

For any serious forex trader, building an understanding of how sessions interact with your specific strategy is a fundamental piece of the work. The market being open 24 hours a day doesn't mean every hour is worth trading — it means you have the flexibility to choose the hours that match your approach.