| Headsigns | Start | End | Duration | Schedule |
|---|---|---|---|---|
531 WILLOWBROOK 531 WHITE ROCK CTR | 06:20 | 21:00 | 14:40 | Su (4/12-6/20) |
| Headsign | Start | End | Duration | Service days |
|---|---|---|---|---|
| 531 WILLOWBROOK | 06:20 | 07:04 | 00:44 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 07:20 | 08:04 | 00:44 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 08:20 | 09:04 | 00:44 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 09:20 | 10:03 | 00:43 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 10:20 | 11:05 | 00:45 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 11:20 | 12:07 | 00:47 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 12:20 | 13:10 | 00:50 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 13:20 | 14:10 | 00:50 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 14:20 | 15:07 | 00:47 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 15:20 | 16:12 | 00:52 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 16:20 | 17:06 | 00:46 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 17:20 | 18:07 | 00:47 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 18:20 | 19:02 | 00:42 | Su (4/12-6/20) +5/24 |
| 531 WHITE ROCK CTR | 19:20 | 20:05 | 00:45 | Su (4/12-6/20) +5/24 |
| 531 WILLOWBROOK | 20:20 | 21:00 | 00:40 | Su (4/12-6/20) +5/24 |