title: What is the least number of bytes for representing date and time?
body: <p>I need to transfer the current operating system's date and time up to micro-seconds accuracy from party A to party B over TCP/IP. </p>
  
  <ul>
  <li><p>What is the least number of bytes
  that can be used to represent this
  without sacrificing accuracy?</p></li>
  <li><p>And how to convert the date and time
  to your bytes format
  using C#?</p></li>
  </ul>