The birthday of the current emperor is always a national holiday. If the emperor changes, the national holiday changes to the birthday date of the new emperor.

Tenno no Tanjobi is one of only 2 days when the Imperial Palace is open to the public. This is a time for the Imperial family, consisting of the Emperor, the Empress, the Crown Prince and Crown Princess, to meet and greet their loyal Japanese subjects.However, this is not a hand-shaking, get to know you type of occasion. Instead, the family appears behind bullet proof glass on the balcony of the Imperial Palace.