| 991 |
Bukit Batok - Choa Chu Kang |
| 991 | SMRT Buses | |
|---|---|---|
| From Bukit Batok | ||
| First Bus | Last Bus | |
| Weekdays | 0530 | 0000 |
| Saturdays | 0530 | 0000 |
| Sundays & Public Holidays | 0530 | 0000 |
| From Choa Chu Kang | ||
| First Bus | Last Bus | |
| Weekdays | 0530 | 0000 |
| Saturdays | 0545 | 0000 |
| Sundays & Public Holidays | 0545 | 0000 |
| Bus Service Frequency | |||
| Before 0830 | 0831 - 1659 | 1700 - 1900 | After 1900 |
| From Bukit Batok | |||
| 08-11 | 10-12 | 07-09 | 08-15 |
| From Choa Chu Kang | |||
| 08-10 | 09-11 | 08-10 | 08-15 |
Related Bus Services
| 991A | Bukit Batok ➔ Bukit Batok West Avenue 3 |
| 991B | Choa Chu Kang ➔ Choa Chu Kang Avenue 1 |
| 991C | Choa Chu Kang Avenue 3 ➔ Bukit Gombak MRT |