Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Hougang Ctrl Int → Hougang Ctrl Int | 05:30 | 23:00 | 7–10 min | 6–14 min | 6–16 min | 17–19 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.