import math

#SunSigns = ["Crocodile","Wind","Night","Seed","Serpent","Transformer","Deer"
#    ,"Star","Offering","Dog","Monkey","Road","Reed","Jaguar","Eagle","Wisdom"
#   ,"Earth","Flint","Storm","Sun"]

SunSigns = [  "imix", "ik", "akbal", "kan", "chicchan", "cimi", "manik",
	"lamat", "muluc", "oc", "chuen", "eb", "ben", "ix", "men",
	"cib", "caban", "etznab", "cauac","ahau"]

def juldy ( mm, id, iyyy) :
    mm = mm + 1
    if mm > 2 :
        jy = iyyy
        jm = mm + 1
    else :
        jy = iyyy - 1
        jm = mm + 13
    jul = int (math.floor (365.25 * jy) + math.floor(30.6001 * jm) + (id + 1720995.0))    
    return (jul)


def Tzolkin(Difference):
    tDifference = Difference
    Difference = abs(Difference)   
    GalacticTone = 1
    j = 1
    if tDifference > 0:
        for i in range(1,Difference + 1):
            if GalacticTone == 1:
                GalacticTone = 13
            else:
                GalacticTone = GalacticTone - 1
            if j == 1:
                j = 20
            else:
                j = j - 1
    else:
        for i in range(1,Difference - 1):
            if GalacticTone == 13:
                GalacticTone = 1
            else:
                GalacticTone = GalacticTone + 1
            if j == 20:
                j = 1
            else:
                j = j + 1
    SunSign = SunSigns[j-1]
    if Difference == 0:
        GalacticTone = 13        
        SunSign = SunSigns[19]
    
    print "Galactic Tone: " , GalacticTone
    print "Sun Sign: " , SunSign


Tzolkin(juldy(11, 15, 1996) - juldy(10, 23, 2001))