When does voting take place once an initiative is qualified for ballot?

Political Constitution of Panama(Constitución Política de la República de Panam?).

https://www.constituteproject.org/constitution/Panama_2004.pdf

Article 313

The initiative topropose constitutional amendments belongs to the National Assembly, the Cabinet Council and theSupreme Court of Justice. Such amendments must be approved by one of the followingprocedures:

1 Through aConstitutional Act, approved in three readings by an absolute majority of the members of theLegislative Assembly, which must be published in the Official Gazette and sent by the ExecutiveBranch to said Assembly within the first five days of ordinary sessionfollowing the installationof the National Assembly elected in the last general elections, so that it canbe discussed andapproved in its first session without modification, in a single reading and byan absolute majorityof all members of the Assembly; 2 Through aConstitutional Act, approved in three readings by an absolute majority of the members of theNational Assembly in one legislature, and approved anew, during the immediatelyfollowing legislature, in three readings by an absolute majority of the membersof the alreadymentioned Assembly. On this occasion the text approved during the previous legislature may beamended. The Constitutional Act approved in this manner must be published in the OfficialGazette and submitted to the people for direct, popular consultation through a referendum thatshall be held on the date designated by the National Assembly, within a period not shorter thanthree months and not longer than six months from the date of the ConstitutionalAct's approval by the second Legislature.