title: Add request timestamp with CURL
body: <p>I'm working in a small LINUX project to calculate requests latency with CURL and a remote website.</p>
  
  <p>So I made a shell script to send automatically GET requests to the remote Apache Webserver. And while accessing Apache's access.log I only find the time when requests from CURL were received by apache only.</p>
  
  <p>Is it possible to also send the date of the CURL request to apache server? (Timestamp)</p>
  
  <p>Thanks </p>