title: Generate X dates between 2 datetimes
body: <p>Is there a simple way to generate hourly datetimes between 2 given dates?</p>
  
  <p>For example, if i'm trying to do the past 24 hours, is there a simple way to 
  get each hour between
  9/25/2019 and 9/26/2019?
  <code>e.g. : 9-25-2019 1pm, 9-25-2019 2pm, etc.</code></p>
  
  <p>This could also expand to days -> 9-20-2019, 9-21-2019, 9-22-2019, etc.</p>
  
  <p>I see there is a way to use generate_series. How would it work in this case?</p>
  
  <p>Thank you!</p>