title: How do I check out what was in my git repository N days ago?
body: <p>I have to check out my source code from two days ago.  Whenever I have to do this, I have to look up the syntax.  It's not in the git-checkout page.  I'd like to have a convenient Stack Overflow question to refer to so I don't have to look it up every time.  If this has already been asked, please point me to the dupe. :)</p>
  
  <p>How do I check out my source code in git from two (or N) days ago?</p>