Domingo-Sábado - Lunes - Martes - Miércoles Sábado - Domingo (junio 22-23) Gorbachev to speak on Tuesday Convention-goers will have the opportunity to hear a keynote address by Mikhail Gorbachev at the fourth plenary session on Tuesday morning, 25 June. The former president of the Soviet Union will receive the Rotary International Humanitarian Service Award from RI President Richard D. King..