From 9339e42caee4d4e8356bf925650d7375cb40dfa1 Mon Sep 17 00:00:00 2001
From: Thierry Carrez <thierry@openstack.org>
Date: Wed, 6 May 2020 15:56:26 +0200
Subject: [PATCH] UTC times can be confusing, explain times better

If real time equivalents for the time slots are provided, add
a link to timeanddate.com corresponding to the time, and display
browser local time equivalent for the time displayed.

Also make sure that the day tab corresponds to the UTC day (until
01 UTC the next day) whatever your timezone is.

Change-Id: I7847e0ac68fc6fcd176d40cc94d4e21c3c6e03e0
---
 base.json     |  1 +
 html/ptg.html |  2 +-
 html/ptg.js   | 19 ++++++++++++++++++-
 3 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/base.json b/base.json
index ee8cdd9..1718f39 100644
--- a/base.json
+++ b/base.json
@@ -9,6 +9,7 @@
     "slots": {
         "Monday": [
             {
+                "realtime": "2020-06-01T09:00:00Z",
                 "desc": "09:00-10:45",
                 "name": "MonA1"
             },
diff --git a/html/ptg.html b/html/ptg.html
index 83179ec..2eb1b07 100644
--- a/html/ptg.html
+++ b/html/ptg.html
@@ -112,7 +112,7 @@
      <table class="table table-condensed">
       <thead><tr><th></th>
       {{#each times as |time|}}
-        <th>{{time.desc}}</th>
+        <th>{{ displaytime time }}</th>
       {{/each}}
       </tr></thead>
      {{#each @root.schedule as |sched room|}}
diff --git a/html/ptg.js b/html/ptg.js
index 835321b..137d940 100644
--- a/html/ptg.js
+++ b/html/ptg.js
@@ -86,10 +86,27 @@ Handlebars.registerHelper('roomcode',
   return new Handlebars.SafeString(cell);
 });
 
+Handlebars.registerHelper('displaytime',
+                          function(time) {
+  if (time['realtime'] != undefined) {
+    var t = new Date(time['realtime']);
+    content = '<a target="_blank" href="' +
+        'https://www.timeanddate.com/worldclock/fixedtime.html?iso=' +
+        time['realtime'] + '" title="' + t + '">' +
+        time['desc'] +'</a>';
+  } else {
+    content = time['desc'];
+  }
+  return new Handlebars.SafeString(content);
+});
+
+
 // What is the day today ?
+// Return Monday until Tuesday 1 UTC
 var now = new Date();
+now.setHours(now.getHours()-1);
 var days = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
-var day = days[ now.getDay() ];
+var day = days[ now.getUTCDay() ];
 var checkins = {};
 
 $.getJSON("ptg.json", function(json) {