Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Toa Payoh Int → Toa Payoh Int | 05:00 | 00:35 | 5–6 min | 6–9 min | 6–8 min | 7–11 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.