Train NS 4257 Haarlem – Leiden Centraal
✓ Today’s run finished
Today, last fix heading to Voorhout at 17:50 No data
- Haarlem17:17
- Heemstede-Aerdenhout17:22
- Hillegom17:27
- Voorhout17:34
- Leiden Centraal17:40
Next service: tomorrow 17:17 from Haarlem · Mon 26 Oct
Next departure 17:17 tomorrow · Haarlem
On-time · 30 days
88%
15/17 runs under 3 min
RT coverage: 15 full · 2 partial · 11 no data
On-time · 90 days
95%
37/39 runs under 3 min
RT coverage: 37 full · 2 partial · 42 no data
Typical delay
0min
Median at arrival, 90 days
30 days: 0 min
P90
0min
9 in 10 runs arrive with less than this
30 days: +2 min
Last 30 days
Arrival delay at Leiden Centraal, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Sun 4 Oct Max en route +8 min · last fix heading to Voorhout +6 min
- Thu 8 Oct Max en route +6 min · last fix heading to Den Haag Laan v NOI +6 min
Distribution · 90 days
39 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 95% · 37
- 3–10 min 5% · 2
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- 100% M n=6
- 100% T n=8
- 100% W n=4
- 83% T n=6
- 100% F n=5
- 100% S n=6
- 75% S n=4
Stops and timetable
Timetable of the latest run from the operator’s GTFS (5 stops).
| Stop | Sched. |
|---|---|
| 17:17 | |
| 17:22 | |
| 17:27 | |
| 17:34 | |
| 17:40 |
Each run is closed into train_runs (country, train number, service day) from the live positions. Final delay = last delay seen. Partial coverage: the feed stopped before the final stop (last value used, hatched in the chart). No data: a run without any valid delay; counts as neither on time nor late. Data collected since 11 July 2026.
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Sun 25 Oct | Voorhout 17:50 | No data | — |
| Sat 24 Oct | Voorhout 17:50Partial coverage | 0 min | — |
| Fri 23 Oct | Den Haag Laan v NOI 18:17 | No data | — |
| Thu 22 Oct | Den Haag Laan v NOI 18:12 | 0 min | — |
| Wed 21 Oct | Den Haag Laan v NOI 18:15 | No data | — |
| Tue 20 Oct | Den Haag Laan v NOI 18:15 | 0 min | — |
| Mon 19 Oct | Den Haag Laan v NOI 18:15 | No data | — |
| Sun 18 Oct | Voorhout 17:50 | No data | — |
| Sat 17 Oct | Voorhout 17:50Partial coverage | 0 min | — |
| Fri 16 Oct | Den Haag Laan v NOI 18:16 | 0 min | — |
| Thu 15 Oct | Den Haag Laan v NOI 18:15 | No data | — |
| Wed 14 Oct | Den Haag Laan v NOI 18:16 | No data | — |
| Tue 13 Oct | Den Haag Laan v NOI 18:15 | No data | — |
| Mon 12 Oct | Den Haag Laan v NOI 18:15 | 0 min | — |
| Fri 9 Oct | Den Haag Laan v NOI 18:21 | 0 min | +10 min |
| Thu 8 Oct | Den Haag Laan v NOI 18:17 | +6 min | +6 min |
| Wed 7 Oct | Den Haag Laan v NOI 18:15 | 0 min | — |
| Tue 6 Oct | Den Haag Laan v NOI 18:15 | 0 min | — |
| Mon 5 Oct | Den Haag Laan v NOI 18:15 | 0 min | — |
| Sun 4 Oct | Voorhout 17:48 | +6 min | +8 min |
| Sat 3 Oct | Amsterdam Sloterdijk 23:39 | 0 min | +6 min |
| Fri 2 Oct | Den Haag Laan v NOI 18:16 | No data | — |
| Thu 1 Oct | Haarlem 19:23 | 0 min | — |
| Wed 30 Sept | Den Haag Laan v NOI 18:15 | No data | — |
| Tue 29 Sept | Haarlem 20:21 | 0 min | — |
| Mon 28 Sept | Haarlem 18:21 | 0 min | — |
| Sun 27 Sept | Den Haag Laan v NOI 18:20 | No data | — |
| Sat 26 Sept | Haarlem 22:19 | 0 min | — |
| Fri 25 Sept | Den Haag Laan v NOI 18:16 | No data | — |
| Thu 24 Sept | Voorschoten 18:08 | No data | — |