Operated by GAS
| Direction | First bus (wkday) | Last bus | AM peak | AM off-peak | PM peak | PM off-peak |
|---|---|---|---|---|---|---|
| Punggol Int → Yishun Int | 05:30 | 23:30 | 8–12 min | 8–14 min | 8–10 min | 14–19 min |
| Yishun Int → Punggol Int | 06:00 | 23:30 | 9–15 min | 8–16 min | 8–10 min | 16–19 min |
First/last bus are at the origin stop, weekdays. Frequencies are LTA's scheduled ranges in minutes.