How do I calculate # of months between 2 dates in Acrobat DC form?

Hi there,

Admitted JavaScript idiot here.  Need to calculate number of months to 2 decimals between a move in and move out date.

I got it down to the number of days using what's below.

To make it easy, I only need to take the result from this script and divide by 30.

I do not need years.  So a calculation of more than 12 months is fine.

Could someone help??

Thank you!!

// Custom calculate script

(function () {

var sStart = getField("MOVE_IN_DATE_CLIENT").valueAsString;

var sEnd = getField("MOVE_OUT_DATE_CLIENT").valueAsString;

var dStart, dEnd, diff;

if(sStart && sEnd) {

dStart = util.scand("mm/dd/yy", sStart);

dEnd = util.scand("mm/dd/yy", sEnd);

diff = dEnd.getTime() - dStart.getTime();

event.value = Math.floor(diff / 864e5);

} else {

event.value = "";

}

})();