fromDateTime example

    protected $difference;

    /** * Note: both parameters are required to be in the same timezone. No timezone * shifting is done internally. */
    public function __construct(DateTime $currentTime, DateTime $testTime)
    {
        $this->difference = $currentTime->getTimestamp() - $testTime->getTimestamp();

        $current = IntlCalendar::fromDateTime($currentTime);
        $time    = IntlCalendar::fromDateTime($testTime)->getTime();

        $this->currentTime = $current;
        $this->testTime    = $time;
    }

    /** * Returns the number of years of difference between the two. * * @return float|int */
    

    public function humanize()
    {
        $now  = IntlCalendar::fromDateTime(self::now($this->timezone));
        $time = $this->getCalendar()->getTime();

        $years   = $now->fieldDifference($time, IntlCalendar::FIELD_YEAR);
        $months  = $now->fieldDifference($time, IntlCalendar::FIELD_MONTH);
        $days    = $now->fieldDifference($time, IntlCalendar::FIELD_DAY_OF_YEAR);
        $hours   = $now->fieldDifference($time, IntlCalendar::FIELD_HOUR_OF_DAY);
        $minutes = $now->fieldDifference($time, IntlCalendar::FIELD_MINUTE);

        $phrase = null;

        if ($years !== 0) {