Since rapid expansion of the numbers of college students, the issues of student engagement and learning performance have become public concern. Specifically, students’ campus life in terms of their time spent may impact not only their performance but their job preparation in near future. This study tried to demonstrate how the fuzzy mean, fuzzy distance, and fuzzy correlation can be used to interpret the issues. The results reveal that fuzzy interval data collection and transformation followed the fuzzy statistics has demonstrated a reasonable way to tackle the related issues. Among the campus activities, time spent on the online has been found exerted more influence based on its higher related to other activities. According to the patterns of time management, this study built a fuzzy index to estimate the efficiency of time management. The examples of this study may suggest that fuzzy logic of measurement can be used to answer similar issues in other settings.