First, we must consider the fact that working out regularly at a specific time of day, will allow the athlete to perform at their best at that time (Hill et. al. 1998). So really we must consider what time does the athlete normally workout? For the Triathletes, Runners, and Cyclists I train, the mornings tend to be their best times. Meanwhile the Strength Athletes, and those looking for fitness and general health who workout in the evenings regularly, see their best performances there.