Hamlet Season Length

[skittles sour]

According to the wikia entry for Hamlet seasons, the season length is suppose to be 10, but when the entries list the dates of the seasons, they list day 1 - 11, day 12 to 22, day 23 to day 33, which, if you do the math correctly, will give you a count of 11 days per season. From my play experience I definitely remember having seasons of 11 days, and that the first temperate season did indeed go from day 1 to day 11 and the first humid from day 12 to day 22 and so on as the wikia article described. And yet! I was looking through the seasonmanager_pork component recently, and I saw that the length of the seasons is actually fixed at half of the tuning file's friendly season length, which would give 10 days (since the default friendly season length is 20 days), and not 11 days. Since I've noticed this little contradiction I've also started noticing that sometimes the humid season starts on day 11 and not day 12, and right now I'm really confused about the exact season length. Does anyone know anything about this? Is there something special with how the hamlet clock works?