| Headsigns | Start | End | Duration | Schedule |
|---|---|---|---|---|
531 WILLOWBROOK 531 WHITE ROCK CTR | 05:50 | 21:31 | 15:41 | Su (4/12-6/20) |
| Headsign | Start | End | Duration | Service days |
|---|---|---|---|---|
| 531 WILLOWBROOK | 05:50 | 06:34 | 00:44 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 06:50 | 07:36 | 00:46 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 07:50 | 08:34 | 00:44 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 08:50 | 09:33 | 00:43 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 09:50 | 10:34 | 00:44 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 10:50 | 11:37 | 00:47 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 11:50 | 12:39 | 00:49 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 12:50 | 13:39 | 00:49 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 13:50 | 14:39 | 00:49 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 14:50 | 15:42 | 00:52 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 15:50 | 16:36 | 00:46 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 16:50 | 17:38 | 00:48 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 17:50 | 18:33 | 00:43 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 18:50 | 19:35 | 00:45 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 19:50 | 20:32 | 00:42 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 20:50 | 21:31 | 00:41 | Su (4/12-6/20) +5/24 |