How to determine one year from now in Javascript

Question

I\'m trying to get one year from now\'s date, and it\'s not working.

JS:

var now = new Date();

var oneYr = new Date();
oneYr.setYear(now.getYear() +         


        

Answer 1

You should use getFullYear() instead of getYear(). getYear() returns the actual year minus 1900 (and so is fairly useless).

Thus a date marking exactly one year from the present moment would be:

var oneYearFromNow = new Date();
oneYearFromNow.setFullYear(oneYearFromNow.getFullYear() + 1);

Note that the date will be adjusted if you do that on February 29.

Similarly, you can get a date that's a month from now via getMonth() and setMonth(). You don't have to worry about "rolling over" from the current year into the next year if you do it in December; the date will be adjusted automatically. Same goes for day-of-month via getDate() and setDate().

Answer 2

In very simple way. use this code.

// define function 
function nextYearDate(date1) {
    var date2 = new Date(date1);
    var date3 = date2.setDate(date2.getDate() - 1);
    var date = new Date(date3);
    var day = date.getDate();
    var month = date.getMonth()+1;
    var year = date.getFullYear()+1;
    var newdate = year + '-' + (month < 10 ? '0' : '') + month + '-' + (day < 10 ? '0' : '') + day;
    $("#next_date").val(newdate);
}
// call function.
<input type="date" name="current_date" id="current_date" value="" onblur="nextYearDate(this.value);" />

<input type="date" name="next_date" id="next_date" value="" onblur="nextYearDate(this.value);" />