The first two usually take place on Friday, with Monaco being the single exemption, where those sessions are held on Thursday, in order to minimise road-closure disruptions to local residents.
As dúas primeiras polo xeral lévanse a cabo o venres, pero Mónaco é a única excepción, onde as sesións realizanse o xoves, co fin de minimizar o corte e peche das estradas aos residentes locais.