2 "eight-year" rules in the Civil Code

All provisions below are taken from the Civil Code of the Philippines. The Civil Code of the Philippines is the product of the codification of private law in the Philippines. It is the general law that governs family and property relations in the Philippines. It was enacted in 1950, and remains in force to date with some significant amendments. SOURCE: Civil Code of the Philippines. From Wikipedia, the free encyclopedia. https://en.wikipedia.org/wiki/Civil_Code_of_the_Philippines

Both of the provisions below are under the law on prescription.

Article 1132. The ownership of movables prescribes through uninterrupted possession for four years in good faith.

The ownership of personal property also prescribes through uninterrupted possession for eight years, without need of any other condition.

With regard to the right of the owner to recover personal property lost or of which he has been illegally deprived, as well as with respect to movables acquired in a public sale, fair, or market, or from a merchant's store the provisions of articles 559 and 1505 of this Code shall be observed.
Article 1140. Actions to recover movables shall prescribe eight years from the time the possession thereof is lost, unless the possessor has acquired the ownership by prescription for a less period, according to articles 1132, and without prejudice to the provisions of articles 559, 1505, and 1133.