Morningness-eveningness is a preference for a certain time to wake up and go to sleep, as well as the time to perform intellectually demanding and physical tasks. Many researchers have found that people who identify as “night people” tend to postpone their duties more often, that is, they deliberately and irrationally delay tasks with the awareness that such behavior will have long-term negative consequences for them. Researchers have also established a correlation between procrastination and self-control, the ability to manage one's own behavior, the ability to delay reward/gratification and regulate emotions. Furthermore, a correlation between morningness-eveningness and self-control has been established, and it was determined that morning people have a higher self-control capacity. Therefore, the aim of this study was to establish the relationship between morningness-eveningness, self-control and procrastination. The participants were 145 male and female students of the University of Zadar who accessed the questionnaire online through the unofficial Facebook Group of the University. The questionnaire consisted of three scales: Composite scale of morningness (CSM), Brief self-control scale (BSCS) and Tuckman procrastination scale. A high negative correlation was found between self-control and procrastination which indicates that the more frequently people procrastinate the lower is there self-control. A significant difference was found between morning and evening people regarding procrastination and self-control; evening people have a tendency to procrastinate more and also have less self-control in comparison to morning people. No correlation was found between age and morningness-eveningnes or procrastination.