As you know, some buildings already exist at the start of the new game. You can think that the first 4 days are for the construction of the starter buildings.

Days in the game are not equivalent to the real-world time. So spring does not last 2 days.

Very weird decision. I like to know exactly how long I've been controlling a colony and starting on Day 4 Year 0 makes it not as easy. Sure, it's not difficult but weird none-the-less.

In regards to the seasons, it seems like I started on Day 4 and by Day 6 it was Summer so to me it lasted 2 days. Maybe I'll try again but the first time around gave me a bad taste of what's to come.

For future reference...

The first year is Year 1...Not Year 0
The first day a player gets control should be Day 1...Not Day 4

And this whole idea of always starting with the same buildings already built in the same place every time is also weird. I'd rather start fresh with a clean slate and on Day 1 instead of being locked into something and losing 3 days.

IMHO of course.