Standing on an egg at any time will likely cause it to crack, regardless of the time of day. The weight and pressure exerted on the egg's delicate structure will cause it to break under your weight.
Jean-Baptist David died in 1866.
Jean Benoît died in 2010.
Jean Devaines died in 1803.
Jean Carlu died in 1997.
Jean Badovici died in 1956.
Jean Monier died in 1656.
Jean Martianay died in 1717.
Jean Newman died in 1971.
Jean Mouton died in 1522.
Jean Royer died in 2011.
Jean Dubourdieu died in 1720.