RER NOTE12

RER

PoissyBoissy-Saint-Léger

Passages not confirmedTimes reported by the data source. Passages are not confirmed.

Historical average delay — home ranking

+4.8 min

Average of available delays per run over the 30 days before calculation, with equal weight for each eligible run. This is not the current delay.

Runs used: 5. Calculated on: 9/11/2026, 1:00:25 AM (Europe/Paris).

This average can be available without a complete route. The route statistics below use only recorded routes with their stops.

Calculation window: 8/12/2026, 1:00:25 AM – 9/11/2026, 1:00:25 AM (Europe/Paris).

Runs in the window: 8
Events confirmed by the source: 0
Events predicted by the source: 1
Unknown event type: 4
Cancelled runs, excluded: 2
No usable delay, excluded: 1

Latest source timestamp: 9/10/2026, 8:03:50 AM (Europe/Paris).

Runs are identified within each source. Identities across sources are kept separate without a proven match. Exclusions can overlap.

Latest available run: these times are historical.

Stops on the latest run

Poissy
Departure
Scheduled time06:44
Predicted by the source06:44(0′)
Achères Grand Cormier
Arrival
Scheduled time06:48
Predicted by the source06:49(+1′)
Departure
Scheduled time06:49
Predicted by the source06:48(-1′)
Maisons-Laffitte
Arrival
Scheduled time06:52
Predicted by the source06:52(0′)
Departure
Scheduled time06:53
Predicted by the source06:52(-1′)
Sartrouville
Arrival
Scheduled time06:54
Predicted by the source06:54(0′)
Departure
Scheduled time06:55
Predicted by the source07:12(+17′)
Houilles - Carrières-sur-Seine
Arrival
Scheduled time06:57
Predicted by the source07:18(+21′)
Departure
Scheduled time06:58
Predicted by the source07:20(+22′)
Nanterre Préfecture - RER
Arrival
Scheduled time07:02
Predicted by the source07:16(+14′)
Departure
Scheduled time07:04
Predicted by the source07:27(+23′)
La Grande Arche de la Défense
Arrival
Scheduled time07:06
Predicted by the source07:17(+11′)
Departure
Scheduled time07:06
Predicted by the source07:18(+12′)
Charles-de-Gaulle Étoile
Arrival
Scheduled time07:10
Predicted by the source07:22(+12′)
Departure
Scheduled time07:11
Predicted by the source07:22(+11′)
Auber
Arrival
Scheduled time07:13
Predicted by the source07:25(+12′)
Departure
Scheduled time07:14
Predicted by the source07:25(+11′)
Châtelet les Halles
Arrival
Scheduled time07:16
Predicted by the source07:27(+11′)
Departure
Scheduled time07:16
Predicted by the source07:28(+12′)
Paris Gare de Lyon
Arrival
Scheduled time07:19
Predicted by the source07:30(+11′)
Departure
Scheduled time07:20
Predicted by the source07:31(+11′)
Nation
Arrival
Scheduled time07:22
Predicted by the source07:33(+11′)
Departure
Scheduled time07:22
Predicted by the source07:33(+11′)
Vincennes
Arrival
Scheduled time07:25
Predicted by the source07:36(+11′)
Departure
Scheduled time07:25
Predicted by the source07:37(+12′)
Fontenay-sous-Bois
Arrival
Scheduled time07:28
Predicted by the source07:39(+11′)
Departure
Scheduled time07:28
Predicted by the source07:40(+12′)
Nogent-sur-Marne
Arrival
Scheduled time07:30
Predicted by the source07:41(+11′)
Departure
Scheduled time07:30
Predicted by the source07:42(+12′)
Joinville-le-Pont
Arrival
Scheduled time07:32
Predicted by the source07:43(+11′)
Departure
Scheduled time07:32
Predicted by the source07:44(+12′)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time07:34
Predicted by the source07:46(+12′)
Departure
Scheduled time07:35
Predicted by the source07:46(+11′)
Le Parc de Saint-Maur RER
Arrival
Scheduled time07:36
Predicted by the source07:48(+12′)
Departure
Scheduled time07:37
Predicted by the source07:48(+11′)
Champigny
Arrival
Scheduled time07:38
Predicted by the source07:50(+12′)
Departure
Scheduled time07:39
Predicted by the source07:50(+11′)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time07:41
Predicted by the source07:52(+11′)
Departure
Scheduled time07:42
Predicted by the source07:52(+10′)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time07:44
Predicted by the source07:56(+12′)
Departure
Scheduled time07:44
Predicted by the source07:56(+12′)
Boissy-Saint-Léger
Arrival
Scheduled time07:47
Predicted by the source07:59(+12′)

Punctuality of recorded routes

Reported delays per run with a complete route; separate from the ranking sample. A predicted delay does not confirm a passage.

Cancelled runs are excluded from the punctuality calculation.

runs reported on time—

average delay+2.9 min

max delay+23 min

runs reported6

cancelled runs2

stops22

Delay values

DateDelay (min)

2026-08-310.8181818181818182

2026-09-030

2026-09-074.545454545454546

2026-09-080.6363636363636364

2026-09-090.2727272727272727

2026-09-1011.045454545454545

Typical schedule

Stops and times of RER NOTE12 from Poissy to Boissy-Saint-Léger on a typical weekday. Actual times may vary.

StopArrivalDeparture

Poissy—06:44

Achères Grand Cormier06:4806:49

Maisons-Laffitte06:5206:53

Sartrouville06:5406:55

Houilles - Carrières-sur-Seine06:5706:58

Nanterre Préfecture - RER07:0207:04

La Grande Arche de la Défense07:0607:06

Charles-de-Gaulle Étoile07:1007:11

Auber07:1307:14

Châtelet les Halles07:1607:16

Paris Gare de Lyon07:1907:20

Nation07:2207:22

Vincennes07:2507:25

Fontenay-sous-Bois07:2807:28

Nogent-sur-Marne07:3007:30

Joinville-le-Pont07:3207:32

Saint-Maur-des-Fossés - Créteil07:3407:35

Le Parc de Saint-Maur RER07:3607:37

Champigny07:3807:39

La Varenne Saint-Hilaire - Chennevières-sur-Marne07:4107:42

Sucy-en-Brie - Bonneuil-sur-Marne07:4407:44

Boissy-Saint-Léger07:47—

Frequently asked questions

What time does RER NOTE12 depart?

RER NOTE12 departs from Poissy at 06:44 (typical schedule from reported times). Actual times may vary.

How many stops does RER NOTE12 make?

RER NOTE12 connects Poissy to Boissy-Saint-Léger with 22 stops.

Is RER NOTE12 on time?

Over the reported runs, every run of RER NOTE12 was cancelled (2 runs): punctuality cannot be established.

Other trains on this line

Live status and delays for the other trains serving the same stations.

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