Operated by SMRT
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Choa Chu Kang Int → Lor 1 Geylang Ter | 05:30 | 23:30 | 8–11 min | 10–15 min | 12–13 min | 12–14 min |
| Lor 1 Geylang Ter → Choa Chu Kang Int | 05:45 | 23:30 | 9–11 min | 9–13 min | 10–11 min | 12–13 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.