Boxing Day, except when December 26 is a Sunday. If it is a Sunday, Boxing Day is transferred to December 27 by Royal Proclamation. (Commonwealth of Nations), and its related observances: Family Day (Vanuatu)

Family Day is a public holiday in the countries of Angola, Israel, Namibia, South Africa, Uruguay, Vanuatu, and Vietnam; in the Canadian provinces of Alberta, British Columbia, New Brunswick, Ontario, and Saskatchewan; in the American states of Arizona and Nevada; and as the second day of Songkran in Thailand. It was formerly observed in the Australian Capital Territory from 2007 to 2017.