January 25, 2020 begins 鼠年 shǔnián, year of the rat (or mouse or rodent). (The previous year was pig; the next, ox.)
鼠年 is the first year in the 12-year cycle. It corresponds to 子 zǐ, the first of the 12 地支 dìzhī earthly branches (子丑寅卯辰巳午未申酉戌亥).
Years of the rat include: 2032, 2020, 2008, 1996, 1984, 1972, 1960, 1948, 1936, 1924, 1912, 1900.
See the whole 12-year cycle!