Previous researchers have had success in finding a correlation between exercise and an increase in positive mood. Researchers have also found a correlation between time of day and mood. The current study will explore the relationship between time of day, mood, and electroencephalography (EEG) asymmetry. The study utilized a convenient sample of ten undergraduate students at Bowling Green State University. Participants had baseline EEG recordings taken, and then participated in moderate exercise, followed by another EEG recording. Participants’ mood was assessed through a self-reported mood questionnaire before the condition as well as immediately after. Due to multiple statistical tests, the alpha level for rejection of the null hypothesis was set at .016. While no statistically significant differences were found, the difference between baseline EEG asymmetry and post-task EEG asymmetry approached significance. Specifically, there was greater left hemispheric activity post-task which is indicative of a more positive mood