This study examines the roles of time perspective, affect, and locus of control in mediating the relationship between regulatory mode and procrastination. Participants filled out the Zimbardo Time Perspective Inventory, Positive and Negative Affect Schedule Scale, Multidimensional Locus of Control Inventory, Locomotion and Assessment Scale, and Lay's General Procrastination scale. Results showed that procrastination was negatively related to locomotion orientation but positively associated with assessment orientation. The relations between regulatory mode and procrastination were mediated by negative affective state, internal sense of control, and negative past and future time perspectives. These findings suggest not only a behavioral link between regulatory mode and procrastination but also affective and cognitive differences in locomotion and assessment orientations that may account for such linkage. The present results also provide empirical support for the theory of locomotion-temporality interface (Kruglanski, Pierro, & Higgins, 2016). Copyright © 2018 Choy, Cheung.