Get difference between two dates using jquery

Question

Can any one suggest a jQuery plugin for calculating the difference between two dates (dates may contain time also) and show it as \'32 days\', \'13 hours\', \'20 min\' etc?<

Answer 1

Here's a pretty simple Javascript implementation I just hacked up. You can do the math to extend this to months or years or remove the plurals for 1 values if needed.

var dateDiff = function ( d1, d2 ) {
    var diff = Math.abs(d1 - d2);
    if (Math.floor(diff/86400000)) {
        return Math.floor(diff/86400000) + " days";
    } else if (Math.floor(diff/3600000)) {
        return Math.floor(diff/3600000) + " hours";
    } else if (Math.floor(diff/60000)) {
        return Math.floor(diff/60000) + " minutes";
    } else {
        return "< 1 minute";
    }
};

dateDiff(new Date(1990, 1, 1), new Date(1990, 1, 13)) // -> 12 days