Women in Japan period to 100 days and allows any woman who is not pregnant during the divorce to remarry immediately after divorce. The Civil Code of Japan requires legally married spouses to have the same surname. Although the law is gender-neutral, meaning that either spouse is allowed to change his/her name to that of the other spouse, Japanese women have traditionally adopt their husband’s family name and 96% of women continue to do so as of 2015. In 2015, the Japanese Supreme Court upheld the constitutionality of the law, noting that women could use their maiden names informally, and stating that it
Finnish name 21st-century Finland, the use of surnames follows the German model. Every person is legally obliged to have a first and last name. At most, three first names are allowed. A Finnish married couple may adopt the surname that either spouse had as non-married, in which case this name will be the surname of their children. A spouse changing his or her name may decide to "use" a double-barrelled name consisting of his or her former and current official surname. In the case where both spouses keep their names they may choose either name for their children, but all siblings must