Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Serangoon Int → Aljunied Stn | 06:30 | 19:42 | 17–45 min | — | 19–28 min | 15–19 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.