Does the name of the months (as well as their numbers) have to be the same for all planets? After all, a planet's year is (normally) determined by how far it is to complete a full circle around its sun.
Actually, I just use Earth (and Newerth) dates and months and years.
Granted, Newerth is the fourth planet in the Serenth galaxy, but it has the same "orbit time" (for lack of better word) as Earth, the third planet of the Milky Way.
Which means the first three Serenth planets are confusing me.