Zimbabwe's presidential run-off election between Robert Mugabe and opposition leader Morgan Tsvangirai will be held on June 27, it was announced.
Mr Tsvangirai claims he won the first presidential race in March outright.
But official results finally released this month showed he did not win enough votes to avoid a second round against Mugabe.
The country's electoral commission announced the date in a notice published in the government gazette.
Mr Tsvangirai predicted he would win against Mugabe, but only if observers from other African nations can guarantee security and deter electoral corruption.
Mr Tsvangirai said he hoped to persuade new political factions, and even supporters of Mugabe's Zanu-PF party, to join his MDC party in advance of the June 27 vote.
He said this should allow his own party to claim a stronger majority than it achieved in the original election, when he defeated Mugabe and two other candidates.
Mr Tsvangirai said Mugabe's regime hoped to intimidate tens of thousands of voters from the polls, and called on the Southern African Development Community - a 15-nation block known as the SADC - to send observers.