When talking about leisure time or activities that people enjoy doing in their free time, it's important to consider synonyms for the phrase "in spare time." Some options might include "during off hours," "in downtime," "during leisure time," or "in non-work hours." Additionally, some people may prefer more specific phrases to describe their free time activities, like "hobby time," "recreational pursuits," or "weekend leisure." Ultimately, the phrasing used will depend on individual preferences and the context in which the phrase is used. Whatever the wording, it's important to prioritize activities that bring joy and relaxation during free time hours.