To format a date field in the Data pane, right-click the field and choose Default Properties > Date Format. You specify a custom date using format symbols listed in the Supported date format symbols table, either alone or in combination.
In most cases, the last item in the list is Custom. When you format dates, Tableau presents a list of available formats. This will open the Format panel to the left of your view.
To format a date field in the view, right-click (Control-click on a Mac) the field and choose Format. How to find the custom date format field Format a date field in a view For setting date properties for a data source, see Date Properties for a Data Source. For an overview of how Tableau works with dates, see Dates and Times, or Change Date Levels. This article discusses using the custom date format field to format dates in a view.
