For the most part, mourning and half mourning traditions are no longer practiced by the majority of modern religions. The Jewish tradition of Shiva is the closest modern equivalent. The first Jewish mourning period lasts seven days and the second period lasts a month. In some special cases the mourning periods can last as long as three months to year. Islam has similar requirements, but only for women where the mourning period after the death of a husband usually lasts four months.