From: Adam Vartanian <flooey@gmail.com>
Date: Wed, 11 Apr 2012 18:56:38 +0000 (-0400)
Subject: Always set milliseconds to zero when computing date tick placement, so that resulting... 
X-Git-Tag: v1.0.0~272^2~2
X-Git-Url: https://adrianiainlam.tk/git/?a=commitdiff_plain;h=002aa329110806d35c228a650f872bf06f3f2dbf;p=dygraphs.git

Always set milliseconds to zero when computing date tick placement, so that resulting times are exactly aligned and become dates when at 00:00.
---

diff --git a/dygraph-tickers.js b/dygraph-tickers.js
index 41e60e4..b331de8 100644
--- a/dygraph-tickers.js
+++ b/dygraph-tickers.js
@@ -330,7 +330,7 @@ Dygraph.getDateAxis = function(start_time, end_time, granularity, opts, dg) {
     // Find a time less than start_time which occurs on a "nice" time boundary
     // for this granularity.
     var g = spacing / 1000;
-    var d = new Date(start_time);
+    var d = new Date(start_time).setMilliseconds(0);
     var x;
     if (g <= 60) {  // seconds
       x = d.getSeconds(); d.setSeconds(x - x % g);