Adobe Sign Text Tag for Date field Validation Signer can not enter Future date

Hi,

I have created a date field in Adobe acroform. Now for this field there is a validation where signer can not enter any future date ie. date value will not exceed current date. I have to handle this with Adobe Sign Text tag only. Is there any condition/calculation method which I can use here in text tag for this validation?

I use Adobe Acrobat Pro DC tool to develop my PDF forms.

Any kind suggestion will be very much appreciated.