title: How to write a regex for a date-time string
body: <p>dateTime = &quot;SATURDAY1200PM1230PMWEEKLY&quot;</p>
  <p>Desired Result: &quot;12:00 PM - 12:30 PM&quot;</p>
  <p>I tried doing this: <code>let str = &quot;SATURDAY600PM630PMWEEKLY&quot;.split(/[^A-Z][0-9]{3,4}(A|P)M/);</code></p>
  <p>But I keep getting an array with chars/numbers. I am unsure if split is the way to go here.</p>