The tables
Why the pair is rated this way
The Rat and the Rooster are a quarter turn apart 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.
The Rooster is a metal sign and the Rat a water sign. In the generating cycle metal carries water, so the Rooster is read as the one who supports and the Rat as the one who grows from it.
The Rat rules the winter month that starts around Dec 7 and the hours from 11 pm to 1 am; the Rooster rules the autumn month that starts around Sep 8 and the hours from 5 pm to 7 pm.
For comparison, the Rat's harmony partner is the Ox and its trine partners are the Monkey and the Dragon; the Rooster's harmony partner is the Dragon and its trine partners are the Snake and the Ox.
Reading
In love, friendship and work
Traditionally the Rat is quick-witted, resourceful and careful with money, and the Rooster is observant, hard-working and frank. The Rat tends to bring sharp planning and look for security; the Rooster tends to bring honesty and order and look for appreciation.
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 the support tends to run one way, so it helps when the one who gets it gives something back.
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).
Rooster years: 1957 (Fire Rooster), 1969 (Earth Rooster), 1981 (Metal Rooster), 1993 (Water Rooster), 2005 (Wood Rooster), 2017 (Fire Rooster), 2029 (Earth Rooster).
9 of the idols with a Bias Match idol page were born in Rat years.
12 of the idols with a Bias Match idol page were born in Rooster 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 Rooster (酉), 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.