problems with Data and Text in power query M formula

Hi all

I create 2 data 

and insert in a query

In this way when I update the query, data are dinamic .... and it's work.

....

In my report I want display Start and End dates, but field DateStart it's completly different from origin.
DateEnd it's OK

 DateStart show the field in another format with another date

where I'm mistaken?