Table:
text: 1993 Formula One season
Grands Prix
Grands Prix
Round Grand_Prix Date_ Location_ Pole_Position Fastest_Lap Winning_Driver Winning_Constructor Report
6 Monaco Grand Prix 23 May Monaco Alain Prost Alain Prost Ayrton Senna McLaren - Ford Report
7 Canadian Grand Prix 13 June Circuit Gilles Villeneuve Alain Prost Michael Schumacher Alain Prost Williams - Renault Report
8 French Grand Prix 4 July Magny-Cours Damon Hill Michael Schumacher Alain Prost Williams - Renault Report
9 British Grand Prix 11 July Silverstone Alain Prost Damon Hill Alain Prost Williams - Renault Report
10 German Grand Prix 25 July Hockenheimring Alain Prost Michael Schumacher Alain Prost Williams - Renault Report
11 Hungarian Grand Prix 15 August Hungaroring Alain Prost Alain Prost Damon Hill Williams - Renault Report

Question: What was the date for the 1993 Formula 1 Canadian Grand Prix?