| Date | Day | Public holiday | CW | Class |
|---|---|---|---|---|
| January 2023 | ||||
| 01.01.2023 | Su | New Year´s Day | 52 | 1 |
| March 2023 | ||||
| 26.03.2023 | Su | DST start | 12 | 5 |
| April 2023 | ||||
| 07.04.2023 | Fr | Good Friday | 14 | 4 |
| 09.04.2023 | Su | Easter | 14 | 4 |
| 10.04.2023 | Mo | Easter Monday | 15 | 1 |
| 27.04.2023 | Th | Koningsdag (national Holiday) | 17 | 1 |
| May 2023 | ||||
| 04.05.2023 | Th | Remembrance of the dead | 18 | 5 |
| 05.05.2023 | Fr | Liberation Day | 18 | 5 |
| 09.05.2023 | Tu | Europe Day | 19 | 5 |
| 14.05.2023 | Su | Mother's Day | 19 | 5 |
| 18.05.2023 | Th | Ascension Day | 20 | 1 |
| 28.05.2023 | Su | Whitsun | 21 | 4 |
| 29.05.2023 | Mo | Whit Monday | 22 | 1 |
| June 2023 | ||||
| 18.06.2023 | Su | Father's Day | 24 | 5 |
| October 2023 | ||||
| 29.10.2023 | Su | DST end | 43 | 5 |
| December 2023 | ||||
| 03.12.2023 | Su | First Advent | 48 | 5 |
| 05.12.2023 | Tu | Sinterklaas | 49 | 5 |
| 10.12.2023 | Su | Second Advent | 49 | 5 |
| 17.12.2023 | Su | Third Advent | 50 | 5 |
| 24.12.2023 | Su | Fourth Advent | 51 | 5 |
| 25.12.2023 | Mo | Christmas | 52 | 1 |
| 26.12.2023 | Tu | St. Stephen´s Day | 52 | 1 |
| 31.12.2023 | Su | Oud en Nieuw | 52 | 5 |
Errors excepted. No guarantee for the correctness of the data.
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