Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Yishun Int → Bt Batok Int | 05:20 | 23:30 | 15–20 min | 19–20 min | 15 min | 19–20 min |
| Bt Batok Int → Yishun Int | 05:40 | 23:45 | 14–15 min | 15–20 min | 15–20 min | 19–20 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.