Formula to show when the julian date changes

[m1tell]

I have a list of Julian dates and I need to know if there is a formula that I
can use to count the number of instance the julian date changes.

 

[GoBow777]

I have a list of Julian dates and I need to know if there is a formula
that I can use to count the number of instance the julian date changes.

This might help.

http://www.cpearson.com/excel/jdates.htm