title: How to be sure that Date.today is in Pacific Time Zone?
body: <p>I am tracking user activity:</p>
  
  <pre><code>def track
     UserActivityTracker.new(date: Date.today.to_s).track
  end
  
  #application.rb
  config.time_zone = 'UTC'
  </code></pre>
  
  <p>How to be sure that days are tracked in the <code>Pacific Time (US &amp; Canada)</code>
   time zone.
  I don't want to change time zone in <code>application.rb</code></p>