The tables
Why the pair is rated this way
The Rat and the Pig are neighbors on the circle of twelve. They are not a harmony, a trine, a clash or a harm pair, so the classical tables call the pair neutral: nothing special pulls them together or apart.
Both are water signs, the Rat yang and the Pig yin, so in five-element terms they speak the same language.
The Rat rules the winter month that starts around Dec 7 and the hours from 11 pm to 1 am; the Pig rules the winter month that starts around Nov 7 and the hours from 9 pm to 11 pm.
For comparison, the Rat's harmony partner is the Ox and its trine partners are the Monkey and the Dragon; the Pig's harmony partner is the Tiger and its trine partners are the Rabbit and the Goat.
Reading
In love, friendship and work
Traditionally the Rat is quick-witted, resourceful and careful with money, and the Pig is generous, easygoing and sincere. The Rat tends to bring sharp planning and look for security; the Pig tends to bring warmth and look for good company.
In love, the zodiac neither helps nor blocks this pair, so the rest of each chart, and the two people, decide how it goes.
As friends or co-workers they tend to move at the same pace and understand each other quickly.
Years
Which years are these animals?
Rat years: 1948 (Earth Rat), 1960 (Metal Rat), 1972 (Water Rat), 1984 (Wood Rat), 1996 (Fire Rat), 2008 (Earth Rat), 2020 (Metal Rat).
Pig years: 1959 (Earth Pig), 1971 (Metal Pig), 1983 (Water Pig), 1995 (Wood Pig), 2007 (Fire Pig), 2019 (Earth Pig), 2031 (Metal Pig).
9 of the idols with a Bias Match idol page were born in Rat years.
16 of the idols with a Bias Match idol page were born in Pig years.
Your pair
Check two birth years
A zodiac year starts in late January or February, not on January 1: Chinese New Year calendars switch at Lunar New Year, and saju switches at Lichun, around February 4. If you were born in January or early February, you may belong to the year before.
Beyond the birth year
On Bias Match the animal that counts most is not the birth year but the day branch, the animal in each person's day pillar. If two people's day branches are Rat (子) and Pig (亥), the compatibility calculator scores that check as zero, neither plus nor minus, next to five other checks.
The text is fixed sentence templates filled in with the classical relation tables built into the Bias Match engine; no AI model generates or rewrites it. For entertainment only: the zodiac describes old patterns, not what will happen between two people.