Govia Thameslink Railway 879Y23
View line Govia Thameslink Railway
Alerts for train 879Y23
Alerts are saved per line, not per trip id, so they keep working when the operator changes the timetable. This train runs on line Govia Thameslink Railway.
The mini-map returns when the train runs
On-time · 30 days
90%
27/30 runs under 3 min
RT coverage: 30 full · 0 partial · 0 no data
On-time · 90 days
86%
76/88 runs under 3 min
RT coverage: 88 full · 0 partial · 0 no data
Typical delay
+1min
Median at arrival, 90 days
30 days: +1 min
P90
+4min
9 in 10 runs arrive with less than this
30 days: +2 min
Last 30 days
Delay at the end of each run, in minutes. One bar per run.
- On time (<3 min)
- 3–10 min
- 10–30 min
- 30+ min
- Partial coverage
- No data
Worst days
- Wed 22 Jul Max en route +21 min · last fix heading to 88479 +9 min
- Wed 7 Oct Max en route +9 min · last fix heading to Sevenoaks +8 min
- Wed 23 Sept Max en route +7 min · last fix heading to Sevenoaks +6 min
- Sun 19 Jul Max en route +6 min · last fix heading to Sevenoaks +6 min
- Wed 9 Sept Max en route +6 min · last fix heading to Sevenoaks +5 min
Distribution · 90 days
88 runs with a known final delay. On time = under 3 min, the same cut the map uses.
- Early 1% · 1
- On time 85% · 75
- 3–10 min 14% · 12
- 10–30 min 0% · 0
- 30+ min 0% · 0
On-time by weekday
- 92% M n=13
- 92% T n=12
- 67% W n=12
- 85% T n=13
- 100% F n=13
- 100% S n=13
- 67% S n=12
Recent runs
| Date | Last stop | Final | Max |
|---|---|---|---|
| Tue 13 Oct | Otford 12:04 | +1 min | +1 min |
| Mon 12 Oct | Otford 12:03 | 0 min | — |
| Sun 11 Oct | Otford 11:59 | +2 min | +2 min |
| Sat 10 Oct | Otford 12:03 | 0 min | — |
| Fri 9 Oct | Otford 12:03 | 0 min | — |
| Thu 8 Oct | Sevenoaks 12:04 | +1 min | +1 min |
| Wed 7 Oct | Sevenoaks 12:11 | +8 min | +9 min |
| Tue 6 Oct | Otford 12:03 | 0 min | — |
| Mon 5 Oct | Sevenoaks 12:03 | +1 min | +1 min |
| Sun 4 Oct | Sevenoaks 11:57 | 0 min | +1 min |
| Sat 3 Oct | Sevenoaks 12:03 | 0 min | +1 min |
| Fri 2 Oct | Sevenoaks 12:04 | +1 min | +1 min |
| Thu 1 Oct | Sevenoaks 12:04 | +1 min | +2 min |
| Wed 30 Sept | Sevenoaks 12:03 | +1 min | +1 min |
| Tue 29 Sept | Sevenoaks 12:03 | 0 min | — |
| Mon 28 Sept | Sevenoaks 12:03 | 0 min | +1 min |
| Sun 27 Sept | Sevenoaks 11:57 | 0 min | — |
| Sat 26 Sept | Sevenoaks 12:03 | 0 min | — |
| Fri 25 Sept | Sevenoaks 12:04 | +1 min | +5 min |
| Thu 24 Sept | Sevenoaks 12:07 | +4 min | +4 min |
| Wed 23 Sept | Sevenoaks 12:09 | +6 min | +7 min |
| Tue 22 Sept | Sevenoaks 12:04 | +1 min | +1 min |
| Mon 21 Sept | Sevenoaks 12:04 | 0 min | — |
| Sun 20 Sept | Sevenoaks 11:50 | −2 min | +1 min |
| Sat 19 Sept | Sevenoaks 11:55 | +1 min | +1 min |
| Fri 18 Sept | Sevenoaks 12:03 | 0 min | +1 min |
| Thu 17 Sept | Sevenoaks 12:04 | +1 min | +1 min |
| Wed 16 Sept | Sevenoaks 12:03 | 0 min | +1 min |
| Tue 15 Sept | Sevenoaks 12:03 | +1 min | +1 min |
| Mon 14 Sept | Sevenoaks 12:03 | +1 min | +2 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.