Châtelet – Les Halles is the major commuter train hub in Paris and the largest underground station in the world. It is directly connected with the Paris Métro stations Châtelet and Les Halles. Taken together they host 750,000 travellers per weekday, 493,000 for the RER only. It is named after the Châtelet monument and the former market of Les Halles.
The station is served by lines A, B, and D of the RER, and is therefore directly accessible from many stations in Île-de-France. It forms a large underground network with the Châtelet and Les Halles Métro stations.
The tracks of the three RER lines are all oriented parallel in an east-west direction. The seven tracks are grouped on four platforms. Both central platforms are reserved for Line D.
The southern end of Châtelet – Les Halles is connected to the Métro station of Châtelet, and the northern end is connected to the Métro station of Les Halles. The walking distance from the RER lines at Châtelet – Les Halles to Métro Line 7 at the far end of Châtelet is about 750 metres.
Monday: 10:00 AM – 7:30 PM,
Tuesday: 10:00 AM – 7:30 PM,
Wednesday: 10:00 AM – 7:30 PM,
Thursday: 10:00 AM – 7:30 PM,
Friday: 10:00 AM – 7:30 PM,
Saturday: 10:00 AM – 7:30 PM,