A Gregorian date
Zodiac information or -1 if the date cannot be converted to a lunar date
// => {
// name: 'ox',
// mate: [ 'snake', 'rooster' ],
// traits: ['Loyal','Reliable','Thorough','Strong','Reasonable','Steady','Determined'],
// year: 1997,
// month: 3,
// day: 10,
// isLeapMonth: false,
// from: 1997-02-06T16:00:00.000Z,
// to: 1998-01-26T16:00:00.000
// }
zodiac(new Date(1997, 4, 8))
Determines the zodiac information for a given Gregorian date