| School Section | Birth Date for August 2025-26 Entry | Birth Date for August 2026-27 Entry | HIS SZ (UK Based) System | North American Based System | HK Local System |
|---|---|---|---|---|---|
| Early Years | 1 Sep 22 – 31 Aug 23 | 1 Sep 23 – 31 Aug 24 | Pre-Nursery | Nursery | PK |
| 1 Sep 21 – 31 Aug 22 | 1 Sep 22 – 31 Aug 23 | Nursery | PreK-1 | K1 | |
| 1 Sep 20 – 31 Aug 21 | 1 Sep 21 – 31 Aug 22 | Reception | PreK-2 | K2 | |
| Pre-Prep School | 1 Sep 19 – 31 Aug 20 | 1 Sep 20 – 31 Aug 21 | Year 1 | Kindergarten | K3 |
| 1 Sep 18 – 31 Aug 19 | 1 Sep 19 – 31 Aug 20 | Year 2 | Grade 1 | Primary 1 | |
| 1 Sep 17 – 31 Aug 18 | 1 Sep 18 – 31 Aug 19 | Year 3 | Grade 2 | Primary 2 | |
| 1 Sep 16 – 31 Aug 17 | 1 Sep 17 – 31 Aug 18 | Year 4 | Grade 3 | Primary 3 | |
| 1 Sep 15 – 31 Aug 16 | 1 Sep 16 – 31 Aug 17 | Year 5 | Grade 4 | Primary 4 | |
| 1 Sep 14 – 31 Aug 15 | 1 Sep 15 – 31 Aug 16 | Year 6 | Grade 5 | Primary 5 | |
| Prep School | 1 Sep 13 – 31 Aug 14 | 1 Sep 14 – 31 Aug 15 | Year 7 | Grade 6 | Primary 6 |
| 1 Sep 12 – 31 Aug 13 | 1 Sep 13 – 31 Aug 14 | Year 8 | Grade 7 | Form 1 | |
| Senior School | 1 Sep 11 – 31 Aug 12 | 1 Sep 12 – 31 Aug 13 | Year 9 | Grade 8 | Form 2 |
| 1 Sep 10 – 31 Aug 11 | 1 Sep 11 – 31 Aug 12 | Year 10 | Grade 9 | Form 3 | |
| 1 Sep 09 – 31 Aug 10 | 1 Sep 10 – 31 Aug 11 | Year 11 | Grade 10 | Form 4 | |
| Sixth Form | 1 Sep 08 – 31 Aug 09 | 1 Sep 09 – 31 Aug 10 | Year 12 (Lower Sixth) | Grade 11 | Form 5 |
| 1 Sep 07 – 31 Aug 08 | 1 Sep 08 – 31 Aug 09 | Year 13 (Upper Sixth) | Grade 12 | Form 6 |
