I don't think there's a date minimum or maximum. I don't get the whole 'All right you've got to wait three days to call after the date.' If I got a number from a girl I'd call that night. There's no science to it for me. You just do what it is that you feel like doing.
Men are apt to mistake the strength of their feeling for the strength of their argument. The heated mind resents the chill touch and relentless scrutiny of logic.