Checking if the user is working at a given time in php

I am beginner in php and Laravel.

I have this code:

$workStart = $point->start; // return 01:05:00
$workEnd = $point->finish; // return 05:30:00

$timeNow = Carbon::now()->format('H:i'); // return 12:30:34

if (.....){
  echo "user work";
} else {
  echo "user NOT work";
}

How can I check if the user is working at the moment or not?

via Chebli Mohamed