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

By 19:35 of May 4, 2014, the Electoral Tribunal announced the winner of the presidential election, with the results from 3,810 polling tables out of 6,330.

http://www.tribunal-electoral.gob.pa/html/fileadmin/user_upload/publicaciones/REVISTA_TE_INFORMA/Revista6/TE_informa_revista_trimestral_6.pdf

During the Presidential (2014) elections certified results were established within 3 days. There is no data for Legislative elections or Referendums.