Compare two dates

by jlbriggs

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>
<script src="https://code.highcharts.com/highcharts-more.js"></script>
<script src="https://code.highcharts.com/modules/exporting.js"></script>

<div id="container" style="width:1000px;height:400px;margin:1.5em 1em;"></div>

<script>
    //var d          = new Date();
    //var pointStart = d.getTime();
Highcharts.setOptions({
    global: {
        useUTC:false
    },
    colors: [
        'rgba( 0,   154, 253, 0.9 )', //bright blue
        'rgba( 253, 99,  0,   0.9 )', //bright orange
        'rgba( 40,  40,  56,  0.9 )', //dark
        'rgba( 253, 0,   154, 0.9 )', //bright pink
        'rgba( 154, 253, 0,   0.9 )', //bright green
        'rgba( 145, 44,  138, 0.9 )', //mid purple
        'rgba( 45,  47,  238, 0.9 )', //mid blue
        'rgba( 177, 69,  0,   0.9 )', //dark orange
        'rgba( 140, 140, 156, 0.9 )', //mid
        'rgba( 238, 46,  47,  0.9 )', //mid red
        'rgba( 44,  145, 51,  0.9 )', //mid green
        'rgba( 103, 16,  192, 0.9 )'  //dark purple
    ],
    chart: {
        alignTicks:false,
        type:'',
        margin:[60,25,100,90],
        //borderRadius:10,
        //borderWidth:1,
        //borderColor:'rgba(156,156,156,.25)',
        //backgroundColor:'rgba(204,204,204,.25)',
        //plotBackgroundColor:'rgba(255,255,255,1)',
        style: {
            fontFamily: 'Abel,serif'
        },
        events:{
            load: function() {
                this.credits.element.onclick = function() {
                    window.open(
                      'http://stackoverflow.com/users/1011544/jlbriggs?tab=profile'
                    );
                 }
            }
        } 
    },
    credits: {
        text : 'http://stackoverflow.com/users/1011544/jlbriggs',
        href : 'http://stackoverflow.com/users/1011544/jlbriggs?tab=profile'
    },
    title: {
        text:'Compare data from two different years',
        align:'left',
        margin:10,
        x:...

CSS

@import url(https://fonts.googleapis.com/css?family=Changa+One|Loved+by+the+King|Fredericka+the+Great|Droid+Serif:400,700,400italic|Abel|Oswald:400,300,700);

body {
    font-family:Abel, Calibri, Helvetica, sans-serif;
    font-size:95%;
}

JavaScript

var chart;
//doesn't even matter what date, just that the start time is correct
var pointStart = 1388552400000; 

$(function() {
    $('#container').highcharts({
        chart       : { type    : 'area' },
        title       : { },
        subtitle    : { },
        legend      : { enabled : true },
        tooltip     : { 
            shared  : true,
            useHTML : true,
            crosshairs: true,
            dateTimeLabelFormats : {
                day: "%b %e",
                hour: "%b %e"
            }
        },
        plotOptions : {
            series  : {
                pointStart      : pointStart,
                pointInterval   : 86400000,
            }
        },
        xAxis      : { 
            type          : 'datetime',
            endOnTick     : false,
            showLastLabel : false,
            tickInterval  : 86400000 * 30,
            labels        : {
                formatter : function() {
                    return Highcharts.dateFormat('%b %e', this.value);
                }    
            },
            title: { text: 'Date' }
        },
        yAxis      : { title: { text: 'Values' } }
    });	
    chart = $('#container').highcharts();

    chart.addSeries({ 
        name : '2014',
        data : randomData(365, true, 500) 
    });
    chart.addSeries({ 
        name : '2015',
        data : randomData(365, true, 500) 
    });
    
})