This graduate thesis dealt with the attitudes of working citizens in Croatia about Sunday work. A very important and current topic that is connected to absolutely every aspect of life and which, after several attempts at rejection, was finally approved. The paper examined the connection between attitudes about the consequences of non-working Sundays, the role of the church and citizens with socio-demographic data and data on working hours at their current job. The method used was a survey, and it was conducted in June 2023, that is, before the actual decision on 16 working Sundays during the year. The population for this research was employed citizens, and the sample eventually included 274 respondents. Using multiple regression analysis, we answered 5 research questions and obtained results. When we talk about who is more supportive of non-working Sundays, in our case it is women who are more religious and people who hold the view that citizens are too little involved in such decisions. Furthermore, people who are more religious support a greater religious role in labor legislation, and those respondents who hold the view that a fixed day off makes it impossible to do private work during the week believe that there should be more civil autonomy in deciding issues that primarily concern the quality of their life.