CERN official holidays

In accordance with Articles R II 4.38 and R II 4.39 of the Staff Regulations

Official holidays in 2026 and end-of-year closure 2026/2027

DateOccasion
Thursday1 JanuaryNew Year
Friday3 AprilGood Friday
Monday6 AprilEaster Monday
Friday1 May1 May
Thursday14 MayAscension day
Monday25 MayWhit Monday
Thursday10 SeptemberJeûne genevois
Thursday24 DecemberChristmas Eve
Friday25 DecemberChristmas
Thursday31 DecemberNew Year’s Eve

Annual closure of the site of the Organization during the end-of-year holiday period

The Laboratory will be closed from Wednesday, 23 December 2026 until Tuesday, 5 January 2027 inclusive (without deduction of annual leave).
The first working day of the New Year will be Wednesday, 6 January 2027.

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 2026 CERN Calendar is available here.

CERN official holidays for 2027 will be announced in the Bulletin in December 2026.

School holidays in host states