short trading days

egorFiNE · Dec 1, 2011 · db432ad · db432ad
1 parent 9a632d0
commit db432ad
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Showing 3 changed files with 53 additions and 1 deletion.
diff --git a/WorkingDays.js b/WorkingDays.js
@@ -57,6 +57,32 @@ WorkingDays.nyseHolidays = {
 	}
 }
 
+WorkingDays.nyseShortDays = {
+	2011: {
+		11: [25]
+	}
+};
+
+/** 
+
+Check if given date is a short trading session at NYSE (MOC @ 13:00)
+
+@param {Date} day date to check.
+
+@return {Boolean}
+
+ */
+WorkingDays.isNyseShortDay = function(day) {
+	var entry = WorkingDays.nyseShortDays[day.getFullYear()];
+	if (entry) {
+		entry = entry[day.getMonth()+1];
+		if (entry) {
+			return entry.indexOf(day.getDate()) >= 0;
+		}
+	}
+	return false;
+}
+
 /** 
 
 Check if given date is a holiday at NYSE.

diff --git a/docs/WorkingDays.html b/docs/WorkingDays.html
@@ -39,7 +39,7 @@
 	<body>
 		<h1>WorkingDays.js</h1>
 
-<ul><li><a href="#classQworkingdaysQ">WorkingDays()</a></li><li><a href="#staticQmethodQisnyseholidayQday">isNyseHoliday(day)</a></li><li><a href="#staticQmethodQisweekendQday">isWeekend(day)</a></li><li><a href="#staticQmethodQisnyseworkingdayQday">isNyseWorkingDay(day)</a></li><li><a href="#staticQmethodQprevnysedayQday">prevNyseDay(day)</a></li><li><a href="#staticQmethodQnextnysedayQday">nextNyseDay(day)</a></li></ul>
+<ul><li><a href="#classQworkingdaysQ">WorkingDays()</a></li><li><a href="#staticQmethodQisnyseshortdayQday">isNyseShortDay(day)</a></li><li><a href="#staticQmethodQisnyseholidayQday">isNyseHoliday(day)</a></li><li><a href="#staticQmethodQisweekendQday">isWeekend(day)</a></li><li><a href="#staticQmethodQisnyseworkingdayQday">isNyseWorkingDay(day)</a></li><li><a href="#staticQmethodQprevnysedayQday">prevNyseDay(day)</a></li><li><a href="#staticQmethodQnextnysedayQday">nextNyseDay(day)</a></li></ul>
 
 <h2><span class="class">WorkingDays()</span></h2>
 
@@ -48,6 +48,16 @@ <h2><span class="class">WorkingDays()</span></h2>
 
 <p>See source code for holidays array. </p>
 
+<h3>WorkingDays.isNyseShortDay(<span class="parameter">day</span>)  <span class="static">static</span></h3>
+
+<p>Check if given date is a short trading session at NYSE (MOC @ 13:00)</p>
+
+<ul><li><code><span class="type">Date</span></code> <code><strong>day</strong></code> &#8212; date to check.</li></ul>
+
+<p>Returns:</p>
+
+<ul><li><code><span class="type">Boolean</span></code> </li></ul>
+
 <h3>WorkingDays.isNyseHoliday(<span class="parameter">day</span>)  <span class="static">static</span></h3>
 
 <p>Check if given date is a holiday at NYSE.</p>

diff --git a/test/WorkingDaysTest.js b/test/WorkingDaysTest.js
@@ -29,6 +29,22 @@ exports['check nyse working days'] = function(test) {
 	test.done();
 }
 
+exports['check nyse short days'] = function(test) {
+	process.env.TZ='America/New_York';
+
+	test.expect(2);
+
+	var day;
+
+	day = Date.parseDaystamp('20110903'); 
+	test.ok(!WorkingDays.isNyseShortDay(day));
+
+	day = Date.parseDaystamp('20111125'); 
+	test.ok(WorkingDays.isNyseShortDay(day));
+	test.done();
+}
+
+
 exports['check nyse prev/next day'] = function(test) {
 	process.env.TZ='America/New_York';