Calendar of non-working days
The non-working days for the year 2024 are established in https://www.boe.es/eli/es/res/2023/11/16/(1)/dof/spa/pdf, https://www.bocm.es/boletin/CM_Orden_BOCM/2023/12/28/BOCM-20231228-8.PDF, https://www.bocm.es/boletin/CM_Orden_BOCM/2023/12/15/BOCM-20231215-27.PDF and https://www.bocm.es/boletin/CM_Orden_BOCM/2024/01/26/BOCM-20240126-22.PDF
You can consult them month by month on the following calendar.