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
Romanian name cases where paternity is not established, the child takes the mother's surname. The law however is flexible, allowing for the couple to choose their family name, and thus the surname they would use for all their children. Typically it is the father's surname (in keeping with the tradition), but parents may also opt to use the mother's surname; or for both of the spouses to have both surnames; or for one spouse to use a double-barrelled name. Romanian law does not require any of the spouses to change their surname, but in practice in most families both spouses will have