The elections will be held on February 10, Knesset Speaker Dalia Itzik announced Thursday.
The date was officially set after most parties had already agreed on it in principle in a meeting with Itzik on Tuesday.
The elections, a year and a month ahead of schedule, follow Ehud Olmert's resignation last month as prime minister to fight corruption charges and Foreign Minister Tzipi Livni's failure to form a new government.
Meanwhile on Thursday, Livni offered Transportation Minister Shaul Mofaz on Thursday to act as the party's campaign director in the oncoming elections.
Livni told Mofaz that she sees him as the party's deputy leader, regardless of the pending legal issues about his place on the list.
The two ministers agreed to work together and to promote party unity.
Also on Thursday, Labor Chairman Ehud Barak, decided that the party will hold comprehensive primary elections, in which the party's 100,000 members will be eligible to vote.
Recent polls suggest that Labor will suffer a devastating blow and will gain merely 10 seats.
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