The aim of the presented research results was to diagnose changes in leisure time behaviours in the situation of the Covid-19 epidemic. The acquired knowledge about changing leisure time behaviour will be used to develop programmes to promote leisure time activity for students during and after the pandemic. The respondents used the Jay B. Nash model of leisure time, which indicates 4 levels of positive use of leisure time and also includes 2 negative levels, i.e. excesses and crime. We assume that the change in leisure time behaviours during the pandemic may consist in creating more valuable forms of activity, giving not so much pleasure but satisfaction (e.g. pursuing interests, creative activity). We also assume that as a result of these changes a sense of spending time in a valuable and meaningful way during the pandemic (building health, feeling satisfied) will be created, which may result in the permanence of the behavioural changes that have occurred, which may become new health and leisure time habits.