Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Ang Mo Kio Int → Upp East Coast Ter | 05:30 | 23:45 | 5–6 min | 5–12 min | 4–8 min | 9–17 min |
| Upp East Coast Ter → Ang Mo Kio Int | 05:30 | 23:30 | 5–6 min | 4–12 min | 6–7 min | 8–16 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.