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javascriptdateduration

JavaScript Date Duration Calculation

I thought I had written code to calculate the duration between two given dates.

However I'm getting an incorrect calculation for the example below.

The example below is counting an extra year...

Kindly help please....

var fromdate = "03/10".split("/");
var todate = "01/14".split("/");
var months = todate[0] - fromdate[0] + 12 * (todate[1] - fromdate[1]);
var duration = Math.round(months / 12) + " years " + (months % 12) + " months";
console.log(duration)
Solution

  • Use floor instead of round:

    var duration = Math.round(months / 12) + " years " + (months % 12) + " months";
                   ^---// Change to Math.floor