The paper deals with the current challenge of population ageing. International organisations, institutions as well as national governments are looking for ways to solve this problem. Slovakia is also one of the countries that must take measures to mitigate the consequences of this process. Specific attention is paid to the so-called active ageing. It examines ways and forms of active ageing as the lifestyle of seniors (work, education, cultural, sports and other leisure activities). The paper brings the results of representative empirical research on the lives of Slovak households. It identifies seniors’ predominant ways of spending time in relation to their own family, intergenerational relationships, interest in the labor market, further education or the use of computer skills. The contribution also offers unique insights into senior well-being. Time allocation is identified at a national level through Time Use Survey (TUS). This type of survey has not been carried out in Slovakia yet. The empirical research, carried out for the first time, created space for studying time allocation and tested one of the methods of detecting positive emotional affectivity of the respondents. The originally processed results show what the seniors consider as the most pleasant activities at their age.