Theoretically, the runoff for president of Zimbabwe is supposed to be held within 21 days of the announcement of results, but the electoral commission is saying that it will not be able to conduct an election in that time frame.
I’m not sure how much is organizational incompetence, and how much is the desire of ZANU-PF to have time to use the state security forces to intimidate the opposition.
The MDC has demanded outside observers/peacekeepers for the elections, and Mugabe’s government has not been receptive, to put it mildly.
They are now demanding an end to economic sanctions before allowing western observers in.