DefaultLogger::formatTime PHP Method

    public static function formatTime($micros)
    {
        $seconds = $micros;
        $minutes = $seconds / 60;
        if ($minutes > 1) {
            return sprintf("%1.0f minute%s %0.2f second%s", $minutes, $minutes === 1 ? " " : "s ", $seconds - floor($seconds / 60) * 60, $seconds % 60 === 1 ? "" : "s");
        } else {
            return sprintf("%0.4f second%s", $seconds, $seconds % 60 === 1 ? "" : "s");
        }
    }

 /**
  * Fired when the build finishes, this adds the time taken and any
  * error stacktrace to the build element and writes the document to disk.
  *
  * @param BuildEvent $event An event with any relevant extra information.
  *                          Will not be <code>null</code>.
  * @throws BuildException
  */
 public function buildFinished(BuildEvent $event)
 {
     $elapsedTime = Phing::currentTimeMillis() - $this->getBuildTimerStart();
     $this->getBuildElement()->setAttribute(XmlLogger::TIME_ATTR, DefaultLogger::formatTime($elapsedTime));
     if ($event->getException() != null) {
         $this->getBuildElement()->setAttribute(XmlLogger::ERROR_ATTR, $event->getException()->getMessage());
         $errText = $this->getDoc()->createCDATASection($event->getException()->getTraceAsString());
         $stacktrace = $this->getDoc()->createElement(XmlLogger::STACKTRACE_TAG);
         $stacktrace->appendChild($errText);
         $this->getBuildElement()->appendChild($stacktrace);
     }
     $this->getDoc()->appendChild($this->getBuildElement());
     $outFilename = $event->getProject()->getProperty("JsonLogger.file");
     if ($outFilename == null) {
         $outFilename = "log.json";
     }
     try {
         $stream = $this->getOut();
         if ($stream === null) {
             $stream = new FileOutputStream($outFilename);
         }
         $writer = new OutputStreamWriter($stream);
         $writer->write($this->xml2js(simplexml_import_dom($this->getDoc())));
         $writer->close();
     } catch (IOException $exc) {
         try {
             $stream->close();
             // in case there is a stream open still ...
         } catch (Exception $x) {
         }
         throw new BuildException("Unable to write log file.", $exc);
     }
     // cleanup:remove the buildElement
     $this->setBuildElement(null);
     array_pop($this->getElementStack());
     array_pop($this->getTimesStack());
 }