title: WordPress: display Time but in the future
body: <p>I'm building a restaurant delivery website and would like to let the customers know the estimated arrival time.</p>
  <p>For example, when the purchase is completed, I would like to tell them:</p>
  <p>&quot;Your order will arrive between (30 minutes from now) and (45 minutes from now)&quot;.</p>
  <p>How can I achieve this? Thanks!</p>