title: Use variable within JMeter $__timeshift
body: <p>I have a variable which is a date in the format of yyyy-MM-dd'T'hh:mm:ss'Z'</p>
  
  <p>I am trying to use timeshift to minus 1 day from that date - ${date_var}</p>
  
  <p>I've tried the following, but it doesnt seem to take the ${date_var}, and instead returns a date of minus 1 day, from the current date/time.</p>
  
  <p>${__timeShift(yyyy-MM-dd'T'hh:mm:ss'Z',${date_var},-P1D,,newdate)}</p>
  
  <p>Any ideas how to input a variable into the timeshift?</p>
  
  <p>Thanks</p>