Duration::format

static function format(int $duration): string
{
	if ($duration < 0)
	{
		$duration = 0;
	}

	$now = new \DateTime();
	$cloneNow = clone($now);
	$now->add(new \DateInterval('PT' . $duration . 'S'));
	$interval = $now->diff($cloneNow);
	[$hours, $minutes, $seconds] = explode(' ', $interval->format('%H %I %S'));
	$minutesStr = sprintf('%s %s', $minutes, Loc::getMessage('DURATION_MIN'));
	$secondsStr = sprintf('%s %s', $seconds, Loc::getMessage('DURATION_SEC'));

	if ($hours !== '00')
	{
		return sprintf(
			'%s %s %s %s',
			$hours,
			Loc::getMessage('DURATION_HOUR'),
			$minutesStr,
			$secondsStr
		);
	}

	if ($minutes !== '00')
	{
		return sprintf('%s %s', $minutesStr, $secondsStr);
	}

	return $secondsStr;
}