Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Yishun Int → Bt Merah Int | 05:30 | 23:40 | 7–10 min | 7–13 min | 8–12 min | 10–15 min |
| Bt Merah Int → Yishun Int | 05:40 | 23:45 | 10 min | 9–13 min | 8–10 min | 9–14 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.