Initially the general elections - presidential and parliamentary - in Turkey were scheduled for next June 18.
According to the president, the decision to move the polls to an earlier date was due to seasonal conditions.
"There are exams, there are agricultural works. That is why such a decision was made," he said.
On January 17, Nationalist Action Party leader Devlet Bahceli, whose organization forms a coalition with the ruling Justice and Development Party, also came out in favor of holding general elections in Turkey in May this year, citing seasonal conditions.
The Justice and Development Party together with the Nationalist Action Party formed the so-called People's Alliance.
According to Bahceli, Erdogan will be the candidate of the alliance in the upcoming elections. The opposition has not yet announced its candidate.