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

Ukraine, 'Radio Free Europe', April 04, 2019 05:57, Final Ukraine Results Give Zelenskiy 30 Percent Of Presidential Vote, accessed 9 April 2019

The Central Election Commission announced on April 4 that Zelenskiy secured 30.24 percent of vote while Poroshenko received 15.95 percent. Former Prime Minister Yulia Tymoshenko came in third with 13.40 percent.