| Headsigns | Start | End | Duration | Schedule |
|---|---|---|---|---|
531 WILLOWBROOK 531 WHITE ROCK CTR | 05:50 | 21:29 | 15:39 | Su (4/06-5/17) |
| Headsign | Start | End | Duration | Service days |
|---|---|---|---|---|
| 531 WHITE ROCK CTR | 05:50 | 06:40 | 00:50 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 06:50 | 07:34 | 00:44 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 07:50 | 08:34 | 00:44 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 08:50 | 09:34 | 00:44 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 09:50 | 10:37 | 00:47 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 10:50 | 11:37 | 00:47 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 11:50 | 12:38 | 00:48 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 12:50 | 13:40 | 00:50 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 13:50 | 14:40 | 00:50 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 14:50 | 15:37 | 00:47 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 15:50 | 16:42 | 00:52 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 16:50 | 17:36 | 00:46 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 17:50 | 18:37 | 00:47 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 18:50 | 19:32 | 00:42 | Su (4/06-5/17) +4/10 |
| 531 WHITE ROCK CTR | 19:50 | 20:35 | 00:45 | Su (4/06-5/17) +4/10 |
| 531 WILLOWBROOK | 20:50 | 21:29 | 00:39 | Su (4/06-5/17) +4/10 |