Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
time_start = $time_start;
$this->time_end = $time_end;
}
/**
* Checks if the given time is within the interval.
*
* @param int $time The time to check.
*
* @return bool Whethe