One issue with these attempts to make a calendar for mars is that they assume you can equally divide the year and still get months that match up with the season

One issue with these attempts to make a calendar for mars is that they assume you can equally divide the year and still get months that match up with the seasons. Mars has an eccentric orbit, so that's not a good matchup. You either accept that th calendar won't be good for tracking the seasons, or make a calendar with uneven months. Considering that the weather outside will kill you year-round on Mars, debate is of course rather academic...