Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Opp Hougang Ctrl Int → Aft Tai Seng Stn | 06:30 | 08:30 | 15 min | — | — | — |
| Aft Tai Seng Stn Exit C → Hougang Ctrl Int | 17:30 | 19:30 | — | — | 15 min | 15 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.