Train NS 4839 Amsterdam Centraal – Alkmaar
Running now · updated 13:25
Heading to Alkmaar 0 min
Estimated arrival at Alkmaar 13:56 · 0 km/h
- Amsterdam Centraal12:55
- Halfweg-Zwanenburg13:06
- Bloemendaal13:19
- Santpoort Noord13:24
- Beverwijk13:32
- Castricum13:45
- Alkmaar13:56
Today it is running no worse than usual: typical arrival delay is 0 min; 94% of the last 17 runs arrived on time.
Last 30 days
Arrival delay at Alkmaar, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Mon 5 Oct Max en route +8 min · last fix heading to Alkmaar Noord +7 min
- Sat 7 Nov Max en route +6 min · last fix heading to Obdam +5 min
Distribution · 90 days
25 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 0% · 0
- On time 92% · 23
- 3–10 min 8% · 2
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- 75% M n=4
- 100% T n=4
- 100% W n=4
- 100% T n=3
- 100% F n=2
- 75% S n=4
- 100% S n=4
Stops and timetable
Timetable of the latest run from the operator’s GTFS (15 stops).
Last 90 days, 25 runs. At intermediate stops it is an estimate from the delay at origin and destination. Delays over 2 h count as “> 2 h”: our data does not measure them exactly.
| Stop | Sched. | Usually | 9 days in 10 | Today |
|---|---|---|---|---|
| 12:55 | on time | on time | ||
| 13:01 | ≈ on time | ≈ on time | ||
| 13:06 | ≈ on time | ≈ on time | ||
| 13:10 | ≈ on time | ≈ on time | ||
| 13:14 / 13:15 | ≈ on time | ≈ on time | ||
| 13:19 | ≈ on time | ≈ on time | ||
| 13:22 | ≈ on time | ≈ +1 min | ||
| 13:24 | ≈ on time | ≈ +1 min | ||
| 13:27 | ≈ on time | ≈ +1 min | ||
| 13:32 | ≈ on time | ≈ +1 min | ||
| 13:36 | ≈ on time | ≈ +1 min | ||
| 13:40 / 13:41 | ≈ on time | ≈ +1 min | ||
| 13:45 | ≈ on time | ≈ +1 min | ||
| 13:51 | ≈ on time | ≈ +1 min | ||
| 13:56 | on time | +1 min |
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.
Will I make my connection?
Pick where you get off and how many minutes you have until your next train. We work it out from what this train did over the last 90 days.
Include the time to change platforms. It is an estimate from past data, not a guarantee. Days more than 2 h late count as a missed connection.
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Wed 11 Nov | Santpoort Noord 13:24Partial coverage | 0 min | — |
| Tue 10 Nov | Heiloo 14:08Partial coverage | +2 min | +2 min |
| Mon 9 Nov | Heiloo 14:07Partial coverage | +2 min | +2 min |
| Sun 8 Nov | Obdam 14:30 | 0 min | — |
| Sat 7 Nov | Obdam 14:34 | +5 min | +6 min |
| Fri 6 Nov | Obdam 14:29 | No data | — |
| Thu 5 Nov | Obdam 14:29 | No data | — |
| Wed 4 Nov | Obdam 14:29 | 0 min | — |
| Tue 3 Nov | Obdam 14:29 | No data | — |
| Mon 2 Nov | Obdam 14:29 | No data | — |
| Sun 1 Nov | Santpoort Zuid 13:38 | +1 min | +1 min |
| Sat 31 Oct | Santpoort Zuid 13:38 | +1 min | +1 min |
| Fri 30 Oct | Obdam 14:29 | 0 min | — |
| Thu 29 Oct | Obdam 14:29 | 0 min | — |
| Wed 28 Oct | Obdam 14:29 | 0 min | — |
| Tue 27 Oct | Obdam 14:30 | No data | — |
| Mon 26 Oct | Obdam 14:29 | No data | — |
| Sun 25 Oct | Obdam 14:30 | No data | — |
| Sat 24 Oct | Obdam 14:29 | 0 min | — |
| Fri 23 Oct | Obdam 14:29 | No data | — |
| Thu 22 Oct | Obdam 14:29 | No data | — |
| Wed 21 Oct | Obdam 14:29 | No data | — |
| Tue 20 Oct | Obdam 14:29 | 0 min | — |
| Mon 19 Oct | Obdam 14:30 | 0 min | — |
| Sun 18 Oct | Obdam 14:30 | 0 min | +1 min |
| Sat 17 Oct | Obdam 14:29 | No data | — |
| Fri 16 Oct | Heemskerk 13:50 | No data | — |
| Thu 15 Oct | Obdam 14:29 | 0 min | — |
| Wed 14 Oct | Obdam 14:30 | No data | — |
| Tue 13 Oct | Obdam 14:29 | 0 min | — |