| Location | Planned | Expected |
|---|---|---|
| Moorgate | 23:42 | On time |
| Old Street | 23:45 | On time |
| Essex Road | 23:48 | On time |
| Highbury & Islington | 23:50 | On time |
| Drayton Park | 23:53 | On time |
| Finsbury Park | 23:57 | On time |
| Harringay | 23:59 | On time |
| Hornsey | 00:01 | On time |
| Alexandra Palace | 00:05 | On time |
| Bowes Park | 00:07 | On time |
| Palmers Green | 00:10 | On time |
| Winchmore Hill | 00:13 | On time |
| Grange Park | 00:15 | On time |
| Enfield Chase | 00:17 | On time |
| Gordon Hill | 00:19 | On time |
| Crews Hill | 00:22 | On time |
| Cuffley | 00:25 | On time |
| Bayford | 00:29 | 00:31 |
| Hertford North | 00:35 | On time |
| Watton-at-Stone | 00:40 | On time |
| Stevenage | 00:49 | On time |
| Hitchin | 00:54 | On time |
| Letchworth Garden City | 01:01 | On time |