In the last national election, how many days did it take for the EMB to establish final results?

European Union Election Observation Mission, Republic of Zimbabwe, Harmonised Elections 2018, [Final Report], accessed 29 December 2018

 “On 3 August the ZEC chairperson declared the presidential results with the incumbent, Emmerson D. Mnangagwa, receiving 2,460,463 votes (50.8%), while the opposition candidate Nelson Chamisa received 2,147,436 (44.3%). With a margin of victory of 313,027 votes (around 38,000 votes over the 50% threshold) Mnangagwa was declared President-elect. […] The announcement of the National Assembly results was finalised on 2 August, and ZEC only published the lists of all members declared elected to the parliament some two weeks later, taking account of the proportional distribution of seats based on party lists. These results are subject to change still depending on the outcome of petitions related to the National Assembly elections (see Electoral Disputes section).”