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

Mexico, Instituto Nacional Electoral (INE) website, 'Elecciones Federales 2018 Programa de Resultados Electorales Preliminares', accessed 13 December 2018

On election day, right after the polls are closed, the INE operates a program based on ICT applications that allows to gather, to add and to announce preliminary results during the election night. At 21:00 on post-election day the data reported corresponds to more than 93.56% of the polling stations set up on e-day. Three days after election day, the official collation and aggregation of results starts, and exactly one week after e day, the final results for all national elections are usually established.