Need to execute a workflow when date field is greater than 23 days ago
                    
I am trying to execute an email when the field "Last Calendar Review" is
 modified & the date field "AE Phone - Last Visit" is greater than 
23 days ago.    What expression builder do  I use to calculate  date 
field "AE Phone - Last Visit" is greater than 23 days ago
These are 2 expressions that I have tried but been unsuccesful:
(PRE('<dLast_Calendar_Review_ITAG>') <> [<dLast_Calendar_Review_ITAG>]) AND
FieldValue('<dAE_Phone__last_visit_date_ITAG>') < Today() - 23
(PRE('<dLast_Calendar_Review_ITAG>') <> [<dLast_Calendar_Review_ITAG>]) AND
FieldValue('<dAE_Phone__last_visit_date_ITAG>') < JulianDay(Today())
                These are 2 expressions that I have tried but been unsuccesful:
(PRE('<dLast_Calendar_Review_ITAG>') <> [<dLast_Calendar_Review_ITAG>]) AND
FieldValue('<dAE_Phone__last_visit_date_ITAG>') < Today() - 23
(PRE('<dLast_Calendar_Review_ITAG>') <> [<dLast_Calendar_Review_ITAG>]) AND
FieldValue('<dAE_Phone__last_visit_date_ITAG>') < JulianDay(Today())
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