Text Tag - Date of Signing dd mmmm yyyy

Hi All,

Does anyone know what the text tag would be to have the date of signing be put automatically with the "dd mmmm yyyy" format for signer 1 - I have tried a few combination of {{Dte_es_:signer1:isdate(format="dd mmmm yyyy")}}, however this doesn't work as it comes through as a text input field with an entered value rather than a date field that is automatically calculated and included in line with the specified format on a mandatory / required basis.

Many thanks!