title: Why getTime() in Javascript is timezone independent?
body: <p>I was trying to understand if it's safe to execute <code>(new Date()).getTime()</code> in different timezones. </p>
  
  <p>By reading <a href="https://stackoverflow.com/a/4577840/4480180">this</a> question, it seems that it actually is time zone independent (assuming that the time on the machine where the script is executed was set correctly).</p>
  
  <p>However, since it's the number of milliseconds since 1/1/1970, if we execute the same script from the next time zone, why it doesn't differ by 3600*1000 (the number of milliseconds in one hour)?</p>