1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>UTC date labels</title>
<link rel="stylesheet" type="text/css" href="../dist/dygraph.css" />
<link rel="stylesheet" type="text/css" href="../common/vextlnk.css" />
<script type="text/javascript" src="../dist/dygraph.js"></script>
</head>
<body>
<h2>UTC date and time labels</h2>
<p>This shows how date ticks and labels may be generated according to local
time (default) or UTC with the option <code>labelsUTC</code>.</p>
<p>72 hours of random hourly data since 2009-Jul-23 18:00 UTC
according to local time (top) and UTC (bottom):</p>
<div id="div_loc" style="width:600px; height:200px;"></div>
<div id="div_utc" style="width:600px; height:200px;"></div>
<p>Please note the offset between the respective ticks in both plots.
It should match your local time zone offset.</p>
<p>You can also check it by hovering over corresponding points and comparing
the value labels.</p>
<p>Try different zoom levels to show that ticks are always placed at nice
time boundaries.</p>
<script type="text/javascript"><!--//--><![CDATA[//><!--
Dygraph.onDOMready(function onDOMready() {
var data = (function() {
var rand10 = function () { return Math.round(10 * Math.random()); };
var a = []
for (var y = 2009, m = 6, d = 23, hh = 18, n=0; n < 72; n++) {
a.push([new Date(Date.UTC(y, m, d, hh + n, 0, 0)), rand10()]);
}
return a;
})();
gloc = new Dygraph(
document.getElementById("div_loc"),
data,
{
labels: ['local time', 'random']
}
);
gutc = new Dygraph(
document.getElementById("div_utc"),
data,
{
labelsUTC: true,
labels: ['UTC', 'random']
}
);
});
//--><!]]></script>
</body>
</html>
|
