Add days to date using JavaScript in Dynamics CRM

This blog post is related to Datetime field in CRM. In many scenarios, we want to recalculate the date field value in Dyanamics CRM by adding days to it. The below JavaScript function is useful in that condition :

//Function to add days to date

function addDays(date, days) {
var result = new Date(date);
result.setDate(result.getDate() + parseInt(days));
return result;

//Recalculate date field value

function recalculateDateFieldValue() {
var date= Xrm.Page.getAttribute(“datefieldname”).getValue();

if (firstemaildueDate != null) {
Xrm.Page.getAttribute(“datefieldname”).setValue(addDays(date, 42));

we can recalculate date field value by adding days as per our needs by checking conditions. Hope this helps.!


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