[SOLVED] Help me to get the "day" part from Date() as string

Using config-template-card, I want to get the “day” valur from Date()

I can get like this:

${ new Date().toDateString() }

But, that would get the complete DATE:

How to get only the “day” as string (text)? in this case would be “2”.

SOLVED:

type: custom:config-template-card
entities:
  - sensor.time
card:
  type: custom:apexcharts-card
  header:
    show: true
    title: |-
      ${ var nDay = new Date().getDate();
         if (nDay < 7) {
           nDay = 7
         };
         var nDayStr = String(nDay);
         nDayStr
      }