blah.php

function blahblahblah() {
  $hours        = get_op_hours();

  $current_time = dateTime::createFromFormat('h:i a', date('h:i a', current_time('timestamp')));
  $close_time   = dateTime::createFromFormat('h:i a', $hours['close']);
  $open_time    = dateTime::createFromFormat('h:i a', $hours['open']);


  if (is_business_open($hours['open'], $hours['close'])) {
    $diff = $close_time->diff($current_time);
    if ($diff->h < 5 && $diff->h >= 1) {
      if ($diff->h === 1) {
        if ($diff->i < 59 && $diff->i > 0) {
          echo 'Closing in ' . $diff->format('%h hour %i minutes.');
        } else {
          echo 'Closing in ' . $diff->format('%h hour.');
        }
      } else {
        if ($diff->i < 59 && $diff->i > 0) {
          $rounded = $diff->format('%h');
          $rounded++;
          echo 'Closing in less than ' . $rounded . ' hours.';
        } else {
          echo 'Closing in ' . $diff->format('%h hours.');
        }
      }
    } elseif ($diff->h < 1 && $diff->i > 0) {
      if ($diff->i === 1) {
        echo 'Closing in ' . $diff->format('%i minute.');
      } else {
        echo 'Closing in ' . $diff->format('%i minutes.');
      }
    }
  } elseif (!is_business_open($hours['open'], $hours['close'])) {
    $diff = $current_time->diff($open_time);
    if ($diff->h < 5) {
      if ($diff->h === 1) {
        if ($diff->i > 1) {
          echo 'Opening in ' . $diff->format('%h hour %i minutes.');
        } else {
          echo 'Opening in ' . $diff->format('%h hour.');
        }
      } elseif ($diff->h === 0) {
        if ($diff->i > 1) {
          echo 'Opening in ' . $diff->format('%i minutes.');
        } elseif ($diff->i === 1) {
          echo 'Opening in ' . $diff->format('%i 1 minute.');
        }
      } else {
        if ($diff->i > 1) {
          echo 'Opening in ' . $diff->format('%h hours %i minutes.');
        } else {
          echo 'Opening in ' . $diff->format('%h hours.');
        }
      }
    } elseif ($diff->h > 5) {
      echo 'Closed';
    }
  }
}