Sorting problem

Hello, i´m having an issue sorting a grid column,

This column, has data tye of date and time, and I'm trying to make the info descending, (showing the most recent one at the top)

Here is the code line:

a!gridTextColumn(
label: "Fecha Ingreso",
field:"fecha_ini",
data: text(local!dataPuesto.data.fecha_ini, "dd/MM/YYYY")
),

value: a!pagingInfo(startIndex: 1, batchSize: 10, sort: a!sortInfo(field:"fecha_ini", ascending: false)),
validations: {},
shadeAlternateRows: true

I converted the data to text because it shows values i dont require, but i also tried with this data type.