Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Toa Payoh Int → Bedok Int | 06:00 | 24:00 | 12–15 min | 14–18 min | 16–19 min | 15–18 min |
| Bedok Int → Toa Payoh Int | 05:40 | 23:30 | 13 min | 13–19 min | 16–17 min | 15–18 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.