Please note that the university is closed on the following days:

2020
- Monday May 4 (compulsory closure day)
- Tuesday 5 Mai (Liberation day
- Friday 22 May
- Monday 28 December
- Tuesday 29 December
- Wednesday 30 December
- Thursday 31 December

2021
- Monday 26 April
- Friday 14 May
- Monday 27 December
- Tuesday 28 December
- Wednesday 29 December
- Thursday 30 December
- Friday 31 December

National holidays The following days are national holidays at the University. You do not have to work on national holidays, unless this is in the interest of the University. You have these days off, without having to use vacation hours:

* New Year's Day
* Good Friday
* Easter Sunday and Monday
* King's Day (the day upon which King's Day is celebrated nationally)
* Liberation Day: 5 May
* Ascension Day
* Whit Sunday and Monday
* 3 October (Relief of Leiden)
* Christmas Day and Boxing Day

October 3 is a holiday in Leiden. If 3 October falls on a Sunday, the holiday is celebrated on Monday 4 October

More information can be found on: webpage