2024 DATES
| Term 1 | Tuesday 31 January - Friday 12 April |
| Term 2 | Monday 29 April - Friday 5 July |
| Term 3 | Monday 22 July - Thursday 26 September |
| Term 4 | Monday 14 October - Thursday 5 December |
2025 DATES
| Term 1 | Tuesday 28 January - Friday 11 April - Thursday 30 January - Y9 start (and all students new to OHS). Details to be emailed - Fri 31 Jan Y10-13 return. Details to be emailed |
| Term 2 | Monday 28 April - Friday 27 June |
| Term 3 | Monday 14 July - Friday 19 September |
| Term 4 | Monday 6 October - Friday 5 December |