Martti,
Thanks for your effort and advice.
Unfortunately I tried to change my custom code using the suggested command:
custom_date = convert(varchar,getdate(),20)
However the result is the same, is shown as my previous screen, despite database is stored as I need
I wonder if is required some setting in application server (some regarding time zone / format hour / etcetera).
In the past I was able to do it showing the full path, but now I cannot do it.
Note: The attribute custom date was created as read - only
Thanks again