For those of you not familiar with the concept, a diurnal is a chart for a particular day cast the same place and time as someone’s birth chart.\
Joe Smith: born January 1, 1960 at 10 am Chicago/His diurnal: May 1, 2010, 10 am in Chicago. The diurnal is read like a birth chart/solar return. Needless to say, the aspects between birth chart and the diurnal is measured too. My example shown here is Joe Biden. His birth chart, his progressed chart, and the diurnal.