Seasons: how long is your spring, summer, fall and winter?

I used to play with 28 days, but have been trying 14 days. It feels very short and I might change it back. I play with very long lives and I don't really play generationally. I age Sims up when I get bored of children and just as often don't have children or keep playing the parents after children grow up and leave. I just want more time to run around in the snow (because Sims 3!).

When I played Sims 4, I always put it at 28 days because the surprise/customizable holidays and calendar are the only things I really like in Sims 4.