Hi @Anonymous,
Do you have any requirement for a specific time? You could just hard-code a time value with a formatdatetime function in an expression.
Below is an example which takes a startdate variable date and adds 12:00 timestamp to it.
You can replace that variable by your dataverse date column.
formatDateTime(variables('StartDate'), 'yyyy-MM-ddT12:00:00.0000000Z')
