Delegates to city conventions of their respective political parties shall be elected at precinct caucuses held at 8:00 p.m. on the third Monday in August of the same year in which the city general election is conducted. The precinct caucuses shall be convened within the boundaries of each precinct at places designated by the city central committee. The chairperson of the city central committee shall file with the city clerk a certified list of places where the precinct caucuses will be held not later than ten days prior to the date of the caucus and shall cause the time and place of said caucus to be published in two newspapers within the city not later than ten days prior to the convening of the precinct caucus.