title: Sidekiq to execute at specific time in every timezones
body: <p>Using Sidekiq, what are the strategy to have it execute at a particular time in every time zone? </p>
  
  <p>For example, I need Sidekiq to perform a task every day at the following time and time zones across the world:</p>
  
  <p><code>
  ...
  8:00 PM EST
  8:00 PM CST
  8:00 PM MST
  8:00 PM PST
  ...
  </code></p>