pragma solidity 0.4.24;


contract Cron is Traceable {
    using DateTime for *;

    bytes constant STAR = '*';
    bytes2 public c_minute;
    bytes2 public c_hour;
    bytes2 public c_day;
    bytes2 public c_month;
    bytes4 public c_year;



    constructor (bytes2 _minute, bytes2 _hour, bytes2 _day, bytes2 _month, bytes4  _year) {
        c_minute = _minute;
        c_hour = _hour;
        c_day = _day;
        c_month = _month;
        c_year = _year;
    }


    function height() public view returns (uint256) {
        return DateTime.numDaysMonth(creationTimestamp(), block.timestamp, _minute, _hour, _day, _month, _year);
    }
}