code: public function timeLog($label = null, $args = null)
      {
          $args = \func_get_args();
          $meta = $this->internal->getMetaVals(
              $args,
              array('channel' => $this->cfg['channel'])
          );
          $microT = 0;
          $ellapsed = 0;
          if (\count($args) === 0) {
              $args[0] = 'time';
              if (!$this->data['timers']['stack']) {
                  list($ellapsed, $microT) = $this->data['timers']['labels']['debugInit'];
              } else {
                  $microT = \end($this->data['timers']['stack']);
              }
          } elseif (isset($this->data['timers']['labels'][$label])) {
              list($ellapsed, $microT) = $this->data['timers']['labels'][$label];
          } else {
              $args = array('Timer \''.$label.'\' does not exist');
          }
          if ($microT) {
              $args[0] .= ': ';
              $ellapsed += \microtime(true) - $microT;
              $ellapsed = \number_format($ellapsed, 4, '.', '');
              \array_splice($args, 1, 0, $ellapsed.' sec');
          }
          $this->appendLog(
              'timeLog',
              $args,
              $meta
          );
      }
docs: Log the running time without stopping/pausing the timer
  also logs additional arguments
  
  Added to web console api in Firefox 62
  Added to PHPDebugConsole in v2.3
  
  @param string $label   (optional) unique label
  @param mixed  $arg,... (optional) additional values to be logged with time
  
  @return void