European Index Hours in Paris Time: the Trading Day from 09:00 to 17:30
The Orque Markets team · 3 November 2026 · 5 min read · How we write
In short
- Euronext Paris and Xetra trade continuously from 09:00 to 17:30 Paris time.
- Wall Street opens at 15:30 Paris time, or 14:30 when clock changes are out of step.
- Write one trading window and your rule for scheduled events into your plan.
"When does the CAC 40 open?" has a simple answer, 09:00, but the full trading day of a European index has several moments where activity, spreads and volatility tend to change. Here is the day laid out in Paris time.
The cash session: 09:00 to 17:30
Euronext Paris (CAC 40) and Xetra in Frankfurt (DAX) share the same core timetable, and the Euro Stoxx 50 follows its members' exchanges:
| Paris time | What happens |
|---|---|
| Before 09:00 | Pre-opening: orders are collected, no continuous trading in the cash market |
| 09:00 | Opening auction, then continuous trading starts |
| 09:00–10:30 | Often the most active part of the European morning |
| 12:00–14:00 | Activity often thins out |
| 14:30 | Main US economic releases in most weeks |
| 15:30 | Wall Street opens (see below for the exceptions) |
| 17:30 | Continuous trading ends, closing auction follows |
The "often" matters: these are tendencies, not timetables of price movement. Some days the lunch hour is busy and the open is quiet.
The time zone trap
Paris uses CET (UTC+1) in winter and CEST (UTC+2) in summer. The United States changes its clocks on different dates: second Sunday of March and first Sunday of November, while Europe changes on the last Sunday of March and October. During those few weeks the New York open falls at 14:30 Paris time instead of 15:30, and US data come out an hour earlier too.
| Period | NYSE / Nasdaq open in Paris time |
|---|---|
| Most of the year | 15:30 |
| Mid to late March | 14:30 |
| Last days of October to early November | 14:30 |
The market sessions tool handles these shifts automatically.
Instruments with longer hours
Futures and other products based on European indices can trade well beyond 09:00–17:30, sometimes almost around the clock. Outside the cash session their price reflects what traders expect the index to do, without the underlying stocks trading. Two consequences:
- Prices at 08:00 can differ from the official open, which is where opening gaps come from.
- Spreads are often wider when liquidity is low. Check your provider's trading hours and costs for each period.
Building your own schedule
A written timetable prevents trading "because the market is open":
- Choose one window you can follow without distraction, for example 09:00–11:00 or 15:15–17:00.
- Note the scheduled events in that window: US data at 14:30, ECB decisions at 14:15 on meeting days (ECB decisions and European indices).
- Decide what you do around those events: stand aside, or reduce size.
- Size every trade from the stop with the lot size calculator, especially in the faster first minutes after 09:00 and 15:30.
Quick recap
The cash session runs from 09:00 to 17:30 Paris time; Wall Street opens at 15:30, or 14:30 when clocks are out of step; products with longer hours trade outside that window with thinner liquidity. Put your own window in your trading plan before you study any setup. Trading involves risk, and most retail traders lose money.
Questions people also ask
What time does the CAC 40 open?
At 09:00 Paris time with an opening auction, after a pre-opening phase.
Why does the US open sometimes come at 14:30?
Because the US and Europe change their clocks on different dates in March and in October–November.
Can index products trade before 09:00?
Some do, with longer hours, but liquidity is often thinner and spreads wider; check your provider.
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