Operated by SBST
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Tampines Int → Toa Payoh Int | 05:30 | 23:00 | 6–8 min | 5–15 min | 8–12 min | 12–18 min |
| Toa Payoh Int → Tampines Int | 06:00 | 23:30 | 5–7 min | 6–15 min | 7–9 min | 8–18 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.