Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Ang Mo Kio Int → Kembangan Stn | 05:30 | 23:30 | 10–12 min | 10–12 min | 10–11 min | 13–16 min |
| Kembangan Stn → Ang Mo Kio Int | 05:40 | 23:30 | 10–11 min | 10–13 min | 11–12 min | 12–15 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.