Source: The Mainichi Shimbun (Tokyo)
The Japanese government is still deciding whether to keep December 23 as a national public holiday in Japan, beginning in 2019, after the abdication of Emperor Akihito on April 30, 2019, and Prince Naruhito's enthronement ceremony the following day.
Though the special legislation, recently passed to enable Emperor Akihito to abdicate (06-Dec-2017 and 24-Jul-2016), specifies that the Emperor's Birthday national holiday of Japan is to move from December 23 to February 23, Japan does have a tradition of keeping the birthday of past emperors as national public holidays, albeit in a renamed manner, as is the case with Emperor Mutsuhito (November 3) and Emperor Hirohito (April 29).
One factor weighing against the retention of December 23 as a national public holiday in Japan, is the fact that Emperor Akihito would still be alive at the outset of Prince Naruhito's reign, as a "joko" (retired) Emperor, leading some in the government to press for a clean and complete break.
Related links and worldwide public holidays news updates:
• Japan bank holidays and public holidays (news and updates)
bank holidays and public holidays news updates (December 2017)
Japan 2018 bank holidays and public holidays (current year)
Japan 2019 bank holidays and public holidays (next year)
Japan 2020 bank holidays and public holidays
Japan 2021 bank holidays and public holidays
Japan 2022 bank holidays and public holidays
• 2018-04-30: Japan Mulls Further 2019 Public Holidays Extension
• 2017-12-06: Japan Mulls 10-Day Abdication Public Holidays
• 2016-07-24: Japanese Heisei Era End Could Mean New Public Holiday