How long do seasons last?

After I researched the code, this is what I found out.

//how much ticks are performed per second ( 5 ticks, 200 ms per tick)
    rate: 5,

so 5 ticks per second.

dayPerTick: 0.1,

that means 2 seconds for 1 day.

daysPerSeason: 100,

100 days per season.

If you multiply 100 days times 2 seconds you get 200 seconds

So to answer your question:

200 seconds for 1 season.

3.33 minutes for 1 season.