Provided a number of days, pretty print a date range in MMDDYYYY format.

printDateRange.js

// pretty print a date range MMDDYYYY
// argument is the number of days for the date range
console.log(printDateRange(365));

function printDateRange(days){

  let options = {timeZone: 'America/Chicago'} // set timeZone using IANA tz
  let curr = new Date(), prev = new Date();
  
  prev.setDate((prev.getDate() - days));
  prev = prev.toLocaleString('en-US', options);
  
  curr.setDate(curr.getDate());
  curr = curr.toLocaleString('en-US', options);
  
  const regex = /.*(?=,)/g;
  let match = [prev, curr].map(i=>{
  	let m = regex.exec(i);
    regex.lastIndex = 0;
  	return m[0]
    }
  );
  
  return match[0] + ' - ' + match[1];
}