Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Buangkok Int → Clementi Int | 05:15 | 23:35 | 15 min | 16–17 min | 19 min | 18–22 min |
| Clementi Int → Buangkok Int | 05:30 | 23:30 | 15–16 min | 16–17 min | 16–20 min | 19–20 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.