We work on the creation of a United Nations model calendar in Spain to offer a unified information portal to young people in the country on the celebration of these activities in their respective cities, contribute to the promotion of these models and help avoid the collision of dates between models. All the associations present at the meeting of the United Nations General Directorate of the Spanish Ministry of Foreign Affairs on 11/29/2016 agreed with this proposal, describing the calendar as an essential need, a need that we intend to contribute to solving.