RER ZEUS91

RER

Boissy-Saint-LégerSaint-Germain-en-Laye

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

Punctuality : 100% on time · average delay +1.3 min · over 4 observed days

Usually

Usual times are calculated from past runs. See the selected run’s timetable below.

Departs: 19:19 · platform 4
Arrives: 20:22 · platform 2
Journey time: 1 h 03
Stops: 24

Stops on the current run

20 stops passed : 5 confirmed by the source, 15 from the forecast. Latest source data: 2 min ago.

Estimated next stop: Chatou - Croissy-sur-Seine at 15:52

Estimated progress: filled dots before the next stop, a ring at the next stop, empty dots afterwards. Passages not confirmed.

Earlier stop (estimated)
Boissy-Saint-Léger
Departure
Scheduled time14:59
Predicted by the source14:59(0′)
Passed according to the source forecast (data 15 min old)
Earlier stop (estimated)
Sucy-en-Brie - Bonneuil-sur-Marne
Arrival
Scheduled time15:01
Predicted by the source15:03(+2′)
Arrival reported by the source, no actual time
Departure
Scheduled time15:02
Predicted by the source15:04(+2′)
Earlier stop (estimated)
La Varenne Saint-Hilaire - Chennevières-sur-Marne
Arrival
Scheduled time15:04
Predicted by the source15:06(+2′)
Departure
Scheduled time15:05
Predicted by the source15:07(+2′)
Passed according to the source forecast (data 5 min old)
Earlier stop (estimated)
Champigny
Arrival
Scheduled time15:07
Predicted by the source15:08(+1′)
Departure
Scheduled time15:07
Predicted by the source15:09(+2′)
Passed according to the source forecast (data 5 min old)
Earlier stop (estimated)
Le Parc de Saint-Maur RER
Arrival
Scheduled time15:09
Predicted by the source15:10(+1′)
Departure
Scheduled time15:09
Predicted by the source15:11(+2′)
Passed according to the source forecast (data 18 min old)
Earlier stop (estimated)
Saint-Maur-des-Fossés - Créteil
Arrival
Scheduled time15:11
Predicted by the source15:12(+1′)
Departure
Scheduled time15:11
Predicted by the source15:13(+2′)
Passed according to the source forecast (data 18 min old)
Earlier stop (estimated)
Joinville-le-Pont
Arrival
Scheduled time15:14
Predicted by the source15:14(0′)
Departure
Scheduled time15:14
Predicted by the source15:15(+1′)
Passed according to the source forecast (data 18 min old)
Earlier stop (estimated)
Nogent-sur-Marne
Arrival
Scheduled time15:16
Predicted by the source15:16(0′)
Arrival reported by the source, no actual time
Departure
Scheduled time15:16
Predicted by the source15:18(+2′)
Earlier stop (estimated)
Fontenay-sous-Bois
Arrival
Scheduled time15:18
Predicted by the source15:18(0′)
Departure
Scheduled time15:18
Predicted by the source15:19(+1′)
Passed according to the source forecast (data 15 min old)
Earlier stop (estimated)
Vincennes
Arrival
Scheduled time15:19
Predicted by the source15:21(+2′)
Arrival reported by the source, no actual time
Departure
Scheduled time15:20
Predicted by the source15:22(+2′)
Earlier stop (estimated)
Nation
Arrival
Scheduled time15:23
Predicted by the source15:24(+1′)
Departure
Scheduled time15:23
Predicted by the source15:25(+2′)
Passed according to the source forecast (data 5 min old)
Earlier stop (estimated)
Paris Gare de Lyon
Arrival
Scheduled time15:25
Predicted by the source15:27(+2′)
Departure
Scheduled time15:26
Predicted by the source15:28(+2′)
Passed according to the source forecast (data 5 min old)
Earlier stop (estimated)
Châtelet les Halles
Arrival
Scheduled time15:29
Predicted by the source15:30(+1′)
Departure
Scheduled time15:29
Predicted by the source15:31(+2′)
Passed according to the source forecast (data 18 min old)
Earlier stop (estimated)
Auber
Arrival
Scheduled time15:32
Predicted by the source15:32(0′)
Arrival reported by the source, no actual time
Departure
Scheduled time15:32
Predicted by the source15:34(+2′)
Earlier stop (estimated)
Charles-de-Gaulle Étoile
Arrival
Scheduled time15:35
Predicted by the source15:36(+1′)
Departure
Scheduled time15:35
Predicted by the source15:37(+2′)
Passed according to the source forecast (data 9 min old)
Earlier stop (estimated)
La Grande Arche de la Défense
Arrival
Scheduled time15:39
Predicted by the source15:39(0′)
Departure
Scheduled time15:40
Predicted by the source15:40(0′)
Passed according to the source forecast (data 5 min old)
Earlier stop (estimated)
Nanterre Préfecture - RER
Arrival
Scheduled time15:42
Predicted by the source15:42(0′)
Departure
Scheduled time15:42
Predicted by the source15:43(+1′)
Passed according to the source forecast (data 5 min old)
Earlier stop (estimated)
Nanterre Université - RER
Arrival
Scheduled time15:44
Predicted by the source15:44(0′)
Arrival reported by the source, no actual time
Departure
Scheduled time15:44
Predicted by the source15:45(+1′)
Earlier stop (estimated)
Nanterre RER
Arrival
Scheduled time15:46
Predicted by the source15:46(0′)
Departure
Scheduled time15:47
Predicted by the source15:47(0′)
Passed according to the source forecast (data 5 min old)
Earlier stop (estimated)
Rueil-Malmaison - RER
Arrival
Scheduled time15:49
Predicted by the source15:49(0′)
Departure
Scheduled time15:49
Predicted by the source15:49(0′)
Passed according to the source forecast (data 5 min old)
Next stop (estimated)
Chatou - Croissy-sur-Seine
Arrival
Scheduled time15:51
Predicted by the source15:51(0′)
Departure
Scheduled time15:51
Predicted by the source15:52(+1′)
Later stop (estimated)
Le Vésinet
Arrival
Scheduled time15:53
Predicted by the source15:53(0′)
Departure
Scheduled time15:54
Predicted by the source15:54(0′)
Later stop (estimated)
Le Vésinet - Le Pecq
Arrival
Scheduled time15:56
Predicted by the source15:55(-1′)
Departure
Scheduled time15:56
Predicted by the source15:56(0′)
Later stop (estimated)
Saint-Germain-en-Laye
Arrival
Scheduled time15:59
Predicted by the source16:00(+1′)

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.

runs reported on time100%

average delay+1.3 min

max delay+4 min

runs reported4

stops24

Delay values

DateDelay (min)

2026-10-171.3043478260869565

2026-10-181.5

2026-10-240.8695652173913043

2026-10-251.4166666666666667

Historical average delay — home ranking: −0.8 min (over 4 runs)

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: 4. Calculated on: 11/1/2026, 3:42:07 PM (Europe/Paris).

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

Calculation window: 10/2/2026, 4:42:07 PM – 11/1/2026, 3:42:07 PM (Europe/Paris).

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

Latest source timestamp: 10/25/2026, 8:23:27 PM (Europe/Paris).

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

Typical schedule

Stops and times of RER ZEUS91 from Boissy-Saint-Léger to Saint-Germain-en-Laye on a typical weekday. Actual times may vary.

StopArrivalDeparture

Boissy-Saint-Léger—19:19

Sucy-en-Brie - Bonneuil-sur-Marne19:2219:23

La Varenne Saint-Hilaire - Chennevières-sur-Marne19:2519:26

Champigny19:2719:28

Le Parc de Saint-Maur RER19:3019:30

Saint-Maur-des-Fossés - Créteil19:3219:32

Joinville-le-Pont19:3419:35

Nogent-sur-Marne19:3619:37

Fontenay-sous-Bois19:3819:39

Vincennes19:4119:42

Nation19:4419:45

Paris Gare de Lyon19:4719:48

Châtelet les Halles19:5119:51

Auber19:5319:54

Charles-de-Gaulle Étoile19:5719:57

La Grande Arche de la Défense20:0120:02

Nanterre Préfecture - RER20:0420:04

Nanterre Université - RER20:0620:06

Nanterre RER20:0820:08

Rueil-Malmaison - RER20:1020:11

Chatou - Croissy-sur-Seine20:1220:13

Le Vésinet20:1520:15

Le Vésinet - Le Pecq20:1720:18

Saint-Germain-en-Laye20:22—

Frequently asked questions

What time does RER ZEUS91 depart?

RER ZEUS91 departs from Boissy-Saint-Léger at 19:19 (typical schedule from reported times). Actual times may vary.

How many stops does RER ZEUS91 make?

RER ZEUS91 connects Boissy-Saint-Léger to Saint-Germain-en-Laye with 24 stops.

Is RER ZEUS91 on time?

Over the reported runs, RER ZEUS91 was reported on time 100% of runs, with an average delay of 1.3 minutes.

Other trains on this line

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

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