system/I18n/Time.php
public function getAge()
	{
		$now  = Time::now()->getTimestamp();
		$time = $this->getTimestamp();

		// future dates have no age
		return max(0, date('Y', $now) - date('Y', $time));
	}
public function getAge()
	{
		$now  = Time::now()->getTimestamp();
		$time = $this->getTimestamp();

		// future dates have no age
		return max(0, date('Y', $now) - date('Y', $time));
	}
Returns the age in years from the "current" date and 'now'
@throws \Exception