From: Robert Kaiser <robert@widebook.box.kairo.at>
Date: Mon, 28 Jul 2014 01:41:11 +0000 (-0700)
Subject: add comments for stardate and revise it by 30min to be more accurate
X-Git-Tag: production~4^2~1
X-Git-Url: https://git-public.kairo.at/?p=tricorder.git;a=commitdiff_plain;h=a4a791a5b5715d83bcca9c3e757cc7c4e20d227e;ds=inline

add comments for stardate and revise it by 30min to be more accurate
---

diff --git a/js/tricorder.js b/js/tricorder.js
index ff53ccb..2574b01 100644
--- a/js/tricorder.js
+++ b/js/tricorder.js
@@ -32,13 +32,20 @@ window.onload = function() {
 }
 
 function updateStardate() {
+  // Stardate rules foggy at best. See http://en.wikipedia.org/wiki/Stardate
+  // and the Memory Alpha article linked there for more details.
+  // We roughly lean on TNG scale by splitting an Earth year into exactly 1000
+  // units, but we put the 0 point at the TV premiere of The Original Series.
   if (!gStardate)
     gStardate = document.getElementById("stardate");
 
   var curDate = new Date();
 
   if (!gSDBase)
-    gSDBase = new Date("September 8, 1966 20:00:00 EST");
+    // Star Trek premiered on Thursday, September 8, 1966, at 7:30PM or 8:30PM
+    // depending on time zone in the United States.
+    // See http://www.startrek.com/article/star-trek-and-newspapers-part-2
+    gSDBase = new Date("September 8, 1966 19:30:00 EST");
 
   var sdateval = (curDate - gSDBase) / (86400 * 365.2425);
   gStardate.textContent = sdateval.toFixed(1);