Hi @Stefan T 

I am afraid it is not currently possible to configure the Public holiday calendar in a way that public holidays falling on the weekend are moved to Monday of the following week. The only solution would be to manually modify the existing Public holiday calendar in use.
 
If we are talking about a System holiday calendar, then you will need to duplicate this calendar in order to be able to delete the public holiday that falls on the weekend and add again this day on the desired date. In this case, I suggest creating this new public holiday day selecting the option Once on a fixed date since it will be a one-time holiday for the selected year. Please, do not create as a Fixed date since it would retroactively affect the absences requested for previous years.
 
In the following article you can find further information:
 Configure Public Holiday Calendars and Public Holidays

I would like to encourage you to post this suggestion of improvement in our ideation area. This way, other users will be able to vote for it, and the suggestion will be shared with our product team. 

In order for us to fully understand your idea, I share with you a couple of questions that your description should clarify when posting in the ideation area: 

• What would you like to achieve with Personio?  What issue do you need to solve?

• Why? What would be the added value for you? 

• How are you solving it right now? 

The more details, the better! However, remember not to share any personal or business data with the public. Make sure to add the link to the idea in this thread, so that other users that find your question can upvote it. 

Thank you in advance for sharing your ideas with us

All the best, 

Erica