Physical seasons, and the modern western calendar, are both based on the sun. Having two moons wouldn’t make a difference there.
Two moons would make the ocean tides more complicated, though.
Perhaps we’d have entirely solar-based calendars with four month-like divisions for the seasons, based on the angle of shadows cast by the Sun (I hear the Mayans had these huge dial things that just counted from 1 to 365) and leap days added onto one season every few years.
You could simply ignore one moon for you calendar. 😄
I think that technically we have two ‘moons’ already. Just that the other one is super small and doesn’t really have much effect on the planet.
Sorry that this didn’t answer your question, and feel free to correct me if I’m wrong.
Our fantasy world artist would make worlds with three moons instead of two. Who knows they might even think having one moon would be cool.
We’d have two Mondays. Nothing good can come of this.
We use the sun:
