>> The only rule about Sprint length in Scrum is that Sprints cannot be
>> longer than one calendar month. Another rule is that all sprints
>> start immediately following the conclusion of the previous one, with
>> no time in between.
I wonder where that "rule" is from? Back in the day it was more than
common to have 1 day in between sprints since your retrospective is
technically not part of the allotted Sprint time.
Common sense people! Let it prevail please, at least over some off rule