>>120139999Nah, they don't operate on the same sort of principal, generally.
It depends on the specific culture in question, but, say, in Aztec society for instance, most of the astrological connotations comes from the sign the DAY you were born falls under, rather then the month (which AFAIK don't have assigned signs). Years also have signs in calendar cycles, but as I said most of the astrological connotation mostly comes from the day, IIRC and, you can't figure out either the day or year sign just from knowing the month of birth, obviously.
