For example, we need to create two visualisations, "Before" and "After", and use dynamic filter for the date of the split.

• Let's say our query is called table.

• Add an additional date table with possible dates of the split.

• Add a slicer control with the table added in the previous step.

• Include a measure of this form to the table:
  IsBefore = IF((Max('table'[Date])<Min('Date'[Date])),1,0)

• Add two visuals, filter first by IsBefore = 1 and second - by IsBefore = 0