This research aimed to gain a further understanding of the ranges of start times that produced the most optimal cognitive functioning among undergraduate students. Researchers surveyed the students to assess their own chronotype and preferred time of functioning and compared them to the findings in sleep research and circadian neuroscience. Results concluded that students vary in their times of peak functioning, whether it be morning or evening, but that start times between 11 am and 12 pm would be close to optimal for all undergraduates in the sample. The later times serve to improve student performance and decrease the health risks of sleep deprivation without disadvantaging any groups that differ from one another.
Source: Frontiers in Human Neuroscience https://www.frontiersin.org/articles/10.3389/fnhum.2017.00188/full
Evans, M D R, Kelley, P., & Kelley, J. (2017). Identifying the best times for cognitive functioning using new methods: matching university times to undergraduate chronotypes. Frontiers in Human Neuroscience,11(188), 1-11. doi: 10.3389/fnhum.2017.00188