Late April is also more appropriate for many Japanese to embrace the change of an era after settling down from a busy period of travel and job transfers around April 1, the beginning of a new fiscal year.
Akihito, who will be 85, said his age was a concern.
The decision was made during a Friday meeting of the Imperial House Council, which included politicians, judicial officials and imperial family members.
1 that Crown Prince Naruhito would become emperor on May 1, 2019, based on recommendations made in a meeting of the Imperial Household Council.
Mr Abe later met reporters briefly to announce that they had decided the emperor would step down on 30 April 2019.
Nikola Jokic Leaves Game vs. Bulls After Ankle Injury Diagnosed as Sprain
The Nuggets' defense allowed the worst offensive team in the National Basketball Association to score 68 points in the first half. But when Jokic picked up his dribble, he planted his left foot on Grant's right foot and twisted his ankle flat to the court.
The emperor's abdication will end the current Heisei era in its 31st year.
The Japanese Emperor has no political powers, but is expected to perform several national duties, including greeting other heads of state. It was last held in 1993 to approve the crown prince's marriage to Masako Owada.
Japan's Emperor Akihito waves to well-wishers from the palace balcony during a New Year's public appearance in 2017.
Bears Ears to be slashed by 85 percent, Grand Staircase by half
Following a visit to Utah, Zinke's initial report recommended changing the boundaries of Bears Ears National Monument. Environmentalists quickly decried the move to shrink the monuments, and vowed to block it through litigation .
The panel is headed by Abe and its members include the heads of both chambers of parliament, the Supreme Court chief justice, the head of the Imperial Household Agency and two imperial family members.
After his abdication, Emperor Akihito will be called "joko" (a title for an emperor who abdicates in favour of a successor) and Empress Michiko, 83, will be given the title of jokogo.
Chandigarh gangrape: Congress slams Kirron Kher for her remark
She further requested the political parties to not politicise issues like rape, women security as they were sensitive issues. The MP said that she "really felt sad" for the victim. "I am saying this things as a mother, not as a politician", she added.