The Armenian parliament will elect the country's new prime minister on May 1, according to a statement posted on the parliament's website .
Armenia, which has been gripped by a political crisis for two weeks, is then expected to hold new parliamentary elections.
Serzh Sarksyan quit as prime minister on Monday.
"Armenia is starting a new chapter in its history," Armenian President Armen Sarkissian said in a statement.
Earlier opposition leader Nikol Pashinian held talks with parliamentary factions in order to secure support for his candidacy as the next prime minister.
Pashinian spearheaded two weeks of protests against Sargsyan, who was the country's president for 10 years before taking the prime minister's seat earlier this month.
Faced with massive protests against the move Sargsyan resigned on Monday.
Pashinian said on Thursday he met with the leader of the parliament's second-largest faction to seek his support. Sargsyan's party holds a majority in the parliament, however.
