Holiday calendar
| 2024-2025 | (dates are inclusive) |
| Lesson-free day | 17 Sep 2024 |
| Lesson-free day: Leiden 3 October festival | 3 Oct 2024 |
| Autumn Holiday | 28 Oct – 3 Nov 2024 |
| Lesson -free day | 3 Dec 2024 |
| Christmas Holiday | 23 Dec 2024 – 5 Jan 2025 |
| Lesson-free day | 3 Feb 2025 |
| Spring Holiday | 24 Feb – 2 Mar 2025 |
| Lesson-free day | 4 Mar 2025 |
| May Holiday *(excluding DP2 & MP5 as exams may take place during this period)* | 21 Apr – 5 May 2025 |
| Ascension Day | 29 May 2025 |
| Whitsun/Pentecost | 9 June 2025 |
| Summer Holiday | 21 Jul – 31 Aug 2025 |
| 2025-2026 | (dates are inclusive) |
| Leiden 3 October festival – Lesson-free day | 3 Oct 2025 |
| Autumn Holiday | 20 Oct – 24 Oct 2025 |
| Christmas Holiday | 22 Dec 2025 – 2 Jan 2026 |
| Spring Holiday | 16 Feb – 20 Feb 2026 |
| Easter Monday | 6 Apr 2025 |
| May Holiday *(excluding DP2 & MP5 as exams may take place during this period)* | 20 Apr – 1 May 2026 |
| Ascension Day | 14 Mei 2026 |
| Whitsun/Pentecost | 25 Mei 2026 |
| Summer Holiday | 20 Jul – 30 Aug 2026 |