Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Serangoon Int → Blk 913 | 18:10 | 20:11 | — | — | 12–19 min | 14–28 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.