How to know a day for a date? and date range for a week?

You can use the "Date Conversion & Operations" shared component. Please refer to this link https://forum.appian.com/suite/sites/shared-components/page/shared-components/record/lMBCLGOdlMUpdGVqW3dQaIKmclBmvvNEj8vu_cjb7T-5YiPr4Fu8ly5Yj1s09uenE4RYzA8zKyx7eiUh-2jLnOmAzvg-XPsGoj-qds0NDCTDixdCA/view/summary

You can get the name for  day from date as -

index(
  split(
    text(
      ri!testDate,
      "mmm/dddd/yyyy"
    ),
    "/"
  ),
  2,
  ""
)

to get the range use the code below to get two dates

/*day 1 of the week - Monday*/
ri!testDate - weekday(ri!testDate,3)

/*Last day of the week - Sunday*/
ri!testDate + 7 - weekday(ri!testDate,2)

you can change the numbers to get the desired day of the week (if not Monday - Sunday).

Hi Omkar K,

One another way to achieve the first requirement is,

text(
today(),"dddd"
)

Hope it helps!