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The top 5 days with the most sessions are :
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
day7 :  452 sessions
day3 :  432 sessions
day5 :  403 sessions
day1 :  299 sessions
day6 :  298 sessions


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The maximum duration of session of each of the top 5 days is :
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day7
std08251 19:39hours    

day3
std10110 22:58hours    

day5
std03262 20:53hours    

day1
std08113 08:04hours    

day6
std07131 12:17hours