Official holidays in 2025 and end-of-year closure 2025/2026
| Date | Occasion | |
|---|---|---|
| Wednesday | 1 January | New Year |
| Friday | 18 April | Good Friday |
| Monday | 21 April | Easter Monday |
| Thursday | 1 May | 1 May |
| Thursday | 29 May | Ascension day |
| Monday | 9 June | Whit Monday |
| Thursday | 11 September | Jeûne genevois |
| Wednesday | 24 December | Christmas Eve |
| Thursday | 25 December | Christmas |
| Wednesday | 31 December | New Year’s Eve |
Annual closure of the site of the Organization during the end-of-year holiday period
The Laboratory will be closed from Saturday, 20 December 2025 until Sunday, 4 January 2026 inclusive (without deduction of annual leave).
The first working day of the New Year will be Monday, 5 January 2026.
To add official holidays to your CERN Exchange calendar, follow these instructions. By doing so, you can access a provisional calendar of holidays for the following year, which is subject to change and is provided for information purposes only.
A printable version of the 2025 CERN Calendar is available here.
CERN official holidays for 2026 will be announced in the Bulletin in December 2025. By subscribing to the official holidays Exchange calendar you can access a provisional calendar of holidays for 2026 which is subject to change and is provided for information purposes only.
School holidays in host states
- School holidays in the Canton of Geneva and in the Canton of Vaud
- School holidays in France