Direct answer (with clear assumptions)
There is no single, universal “London forex market close” clock time that applies to every broker and every chart. In practice, forex liquidity and price action change across trading sessions, and the “London close” is usually used as a shorthand for the end of the London trading session window.
If you need a precise time, the closest verifiable approach is to treat the London session as a time window and then align it to your chart’s time zone and your broker’s trading hours (which can differ).
Explanation: what “close” means in forex and candle timing
Forex does not operate as one centralized exchange with a hard stop for all participants. Instead, market activity is shaped by global trading sessions (often including Asia, London, and New York), which overlap.
When people say “market close,” they often mean one of these things:
- Session window end: The period commonly associated with the London session ends, and liquidity typically shifts toward the next active region.
- Candle close on your chart: The last moment a candle for a given timeframe closes (for example, the last 1-hour candle that ends before a chosen cutoff time).
- Broker trading-hours boundary: Some brokers or platforms show trading-hours settings per instrument; these can affect when orders are accepted.
Within the candle close context, the important distinction is that candle close is determined by your chart timeframe and timezone, not by an external “London gate” that forcibly stops price updates.
Example checks: how to verify the relevant timing for your chart
Use these independent checks to connect “London close” to candle timing:
- Confirm your chart timezone. If your chart is set to a specific timezone, candle close timestamps will follow that setting.
- Identify the London session window you are using. Different guides use slightly different boundaries; treat your chosen window as the reference cutoff.
- Look at the final candle near the cutoff. For a given timeframe (e.g., 1H or 4H), the “last candle close before London ends” is measurable directly from your chart timestamps.
- Check broker trading conditions. Even if candles keep forming, liquidity may drop and spreads can widen outside active sessions.
Limitations and uncertainty (what can change)
Exact “London close” time can vary depending on:
- Time zone handling: London session references must be converted to your chart and your broker server time.
- Broker/platform differences: Trading-hours displays and server time can differ from the reference time zone you see in general market explanations.
- Instrument and schedule effects: Some days can behave differently (for example, around holidays), affecting liquidity even if the chart continues.
Because there is no single universal hard-close time for forex across all participants, any exact clock time you see online should be treated as a convention tied to assumptions. The most independently verifiable “close” for candle-based analysis is the timestamp of candle closes on your own chart settings.