The forex market operates 24 hours a day, five days a week — but not all hours are created equal. For South African traders, understanding how global trading sessions align with South African Standard Time (SAST, UTC+2) is essential for optimising trading strategies, managing volatility, and mitigating risk. This guide explains the four major forex sessions, their SAST timings, and what they mean for your trading decisions.
The forex market is decentralised and operates across multiple international financial centres. Because of time zone differences, trading activity flows from one major hub to another, creating distinct trading sessions. These sessions are defined by the primary market open hours in Sydney, Tokyo, London, and New York — the four major pillars of the global currency market.
For South African traders, understanding these sessions is not merely a matter of convenience — it directly affects liquidity, volatility, and trading costs. During session overlaps, such as the London-New York overlap, trading volume surges, spreads often tighten, and price movements can accelerate. Conversely, during quieter periods, spreads may widen, and price action can become erratic with lower liquidity.
By aligning your trading activity with the most suitable sessions for your strategy, you can improve execution quality, reduce slippage, and better manage risk. This guide focuses specifically on how these sessions translate to South African Standard Time (SAST, UTC+2), including daylight saving adjustments where relevant.
ⓘ Source reference: According to the Bank for International Settlements (BIS) 2025 Triennial Survey, the forex market's decentralised nature is underpinned by these four major trading hubs. The survey also notes that the London and New York sessions account for the majority of daily turnover — over 50% combined — making the overlap particularly significant for traders.
The forex trading week begins in Sydney on Monday morning (Australian time) and closes in New York on Friday afternoon (US time). In South African Standard Time (SAST), which is UTC+2, the sessions fall at the following approximate times:
* Note: The Sydney session shifts by one hour during daylight saving periods (Australian Eastern Daylight Time). South Africa does not observe daylight saving, so adjustments depend on the Australian calendar.
The most critical periods for South African traders are the session overlaps, when two major markets are open simultaneously:
The London-New York overlap, from 2 PM to 6 PM SAST, is widely regarded as the most active trading window. It combines the deep liquidity of Europe with the institutional flow from North America, making it ideal for day traders who thrive on volatility.
SAST Timing: 10:00 PM – 07:00 AM (Winter) / 11:00 PM – 08:00 AM (Summer). The Sydney session is the first to open each trading week. It is characterised by lower volatility compared to London and New York, but it sets the tone for the Asian session. Currency pairs involving the Australian dollar (AUD), New Zealand dollar (NZD), and Japanese yen (JPY) are most active during this window. For South African traders, this session occurs late at night, making it suitable for those who prefer to analyse overnight moves rather than trade actively.
SAST Timing: 02:00 AM – 11:00 AM. The Tokyo session is often referred to as the Asian session. It brings increased liquidity for JPY pairs, particularly USD/JPY and EUR/JPY. Economic data releases from Japan, China, and Australia can create significant moves during this period. For South African traders, the early morning hours (2 AM – 6 AM) are typically quieter, while activity picks up toward the London open at 9 AM SAST.
SAST Timing: 09:00 AM – 06:00 PM. The London session is the most liquid and widely traded session globally, accounting for over 30% of daily forex turnover. It overlaps with the end of the Tokyo session and the beginning of the New York session. This session is ideal for trading EUR/USD, GBP/USD, and USD/CHF, as European economic data (UK CPI, Eurozone PMI, etc.) often triggers sharp movements. For South African traders, this session falls within normal working hours, making it accessible for full-time or part-time trading.
SAST Timing: 02:00 PM – 11:00 PM. The New York session opens as London traders are still active, creating the most volatile overlap period from 2 PM to 6 PM SAST. US economic data releases (Non-Farm Payrolls, CPI, GDP, interest rate decisions) often occur at 2:30 PM or 4:00 PM SAST, causing spikes in volatility. For South African traders, this session stretches into the evening, offering opportunities for those who trade after work.
Understanding session times enables you to tailor your trading approach to the market's rhythm. Here are three common use cases for South African traders:
Day traders who seek high volatility and tight spreads often focus on the 2 PM – 6 PM SAST overlap. This period offers the deepest liquidity, making it easier to enter and exit positions with minimal slippage. News releases from the US at 2:30 PM SAST (e.g., Non-Farm Payrolls) can create sharp trends that day traders can capitalise on.
Swing traders who hold positions for several days may focus on the Tokyo session (2 AM – 11 AM SAST) to capture moves driven by Asian economic data. They can set orders during the quieter hours and manage positions during the London session. This approach is less time-sensitive and suits traders with full-time jobs.
High-impact US economic data releases, such as the Consumer Price Index (CPI) or Federal Reserve interest rate decisions, occur during the New York session (2 PM – 11 PM SAST). South African traders who specialise in news trading prepare for these events during the London session and execute trades immediately after the release, often within the 2 PM – 4 PM SAST window.
📍 Scenario — A South African Day Trader: Thabo, a part-time trader based in Johannesburg, works a full-time job but dedicates his evenings to forex. He focuses on the London-New York overlap (2 PM – 6 PM SAST) because it aligns with his after-work hours. He trades EUR/USD and GBP/USD, using the increased volatility during US data releases to capture 20–30 pip moves with tight stop-losses. By limiting his trading to this 4‑hour window, he maintains discipline and avoids overtrading.
Choosing the right session depends on your trading style, risk tolerance, and availability. Consider the following criteria:
High volatility offers greater profit potential but also increases risk. The London-New York overlap is the most volatile, while the Sydney session is relatively calm. If you prefer steady price movements, the Tokyo session may be more suitable.
During high-liquidity periods (London and New York), spreads tend to be narrower, reducing trading costs. During off-peak hours, spreads can widen significantly, especially for exotic pairs. South African traders should factor in the cost of spreads when choosing their trading window.
Each session has its own schedule of economic releases. South African traders who trade on news should align their activities with the session that publishes the data they track — for example, US data during the New York session, or UK/European data during the London session.
Your personal schedule is a crucial factor. If you work during the day, the evening New York session (2 PM – 11 PM SAST) may be more accessible. For those who trade full-time, the London session (9 AM – 6 PM SAST) offers the most continuous trading hours.
The table below compares the four major forex sessions from a South African trader's perspective.
| Session | SAST Time (Winter) | SAST Time (Summer) | Liquidity | Volatility | Best Currency Pairs |
|---|---|---|---|---|---|
| Sydney | 10:00 PM – 07:00 AM | 11:00 PM – 08:00 AM | Low to Medium | Low | AUD/USD, NZD/USD, AUD/JPY |
| Tokyo | 02:00 AM – 11:00 AM | 02:00 AM – 11:00 AM | Medium | Medium | USD/JPY, EUR/JPY, GBP/JPY |
| London | 09:00 AM – 06:00 PM | 09:00 AM – 06:00 PM | Very High | High | EUR/USD, GBP/USD, USD/CHF |
| New York | 02:00 PM – 11:00 PM | 02:00 PM – 11:00 PM | High | Very High | USD/JPY, EUR/USD, USD/CAD |
| London-New York Overlap | 02:00 PM – 06:00 PM | 02:00 PM – 06:00 PM | Extremely High | Extremely High | All majors, especially EUR/USD |
Note: SAST is UTC+2. South Africa does not observe daylight saving, but Australia does — adjust Sydney session times during AEDT (October–March).
Before you start trading, use this checklist to align your strategy with the right session:
Trading during specific forex sessions introduces unique risks. The US Commodity Futures Trading Commission (CFTC) and Financial Industry Regulatory Authority (FINRA) emphasise that market conditions change with session timing, and traders must adapt their risk management accordingly.
Always verify current rules, fees, spreads, rates, broker availability, and platform terms with the relevant authority or provider before acting. This guide does not provide personalised financial, legal, or tax advice.
ⓘ Source reference: The Federal Reserve publishes regular data on exchange rates and market conditions. The Bank for International Settlements (BIS) provides comprehensive data on trading volumes by session and currency pair. Additionally, the South African Reserve Bank (SARB) monitors forex market developments and publishes relevant statistics. Traders are encouraged to consult these official sources for up‑to‑date market insights.
The London-New York overlap (2 PM – 6 PM SAST) is widely considered the best session due to its high liquidity and volatility. It is also convenient for traders who work during the day and trade in the evening.
The London session opens at 09:00 AM SAST (UTC+2) and closes at 06:00 PM SAST. This is the most liquid session for EUR/USD and GBP/USD.
No, South Africa does not observe daylight saving time. SAST remains at UTC+2 year-round. However, other countries' daylight saving changes affect session timings (e.g., Sydney, London, New York).
The London-New York overlap between 2 PM and 6 PM SAST is the most volatile period, especially when US economic data is released at 2:30 PM or 4:00 PM SAST.
Yes, forex is available 24/5, but liquidity and spreads vary significantly. It is advisable to focus on the sessions that align with your trading strategy rather than trading around the clock.
Load shedding can disrupt internet connectivity and power supply, potentially causing missed trades or execution issues. South African traders should have backup solutions such as uninterrupted power supplies (UPS), mobile data, or generator backup.
The Tokyo session (2 AM – 11 AM SAST) favours JPY pairs such as USD/JPY, EUR/JPY, and GBP/JPY. These pairs see higher activity and tighter spreads during this period.
The Sydney session (10 PM – 7 AM SAST) offers lower volatility and narrower price ranges. It can be useful for traders who prefer a quieter market or want to trade AUD/NZD pairs, but it is not ideal for day traders seeking high volatility.