app.js

answer();

var date = ask('Please say a date.', {choices: 'http://path/to/date.xml'});
log("*** " + date.value + " ***");
say('You said ' + date.value);

var time = ask('Now, say a time.', {choices: 'http://path/to/time.xml'});
log("*** " + time.value + " ***");
say('You said ' + time.value);

say('Goodbye.');

hangup();

date.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<grammar xmlns="http://www.w3.org/2001/06/grammar" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.w3.org/2001/06/grammar http://www.w3.org/TR/speech-grammar/grammar.xsd"
	version="1.0" xml:lang="en-US" mode="voice" root="main">

	<!-- Main gramar rule -->
	<rule id="main" scope="public">
		<tag>$="";</tag>
		<item>
			<ruleref uri="#month" />
			<tag>$ = $ + $month;</tag>
		</item>
		<item>
			<ruleref uri="#day" />
			<tag>$ = $ + "/" + $day;</tag>
		</item>
		<item>
			<ruleref uri="#year" />
			<tag>$ = $ + "/" + $year;</tag>
		</item>
	</rule>

	<!-- Sub rule for month -->
	<rule id="month" scope="private">
		<tag>$="";</tag>
		<one-of>
			<item>
				january
				<tag>$ = $ + "01";</tag>
			</item>
			<item>
				february
				<tag>$ = $ + "02";</tag>
			</item>
			<item>
				march
				<tag>$ = $ + "03";</tag>
			</item>
			<item>
				april
				<tag>$ = $ + "04";</tag>
			</item>
			<item>
				may
				<tag>$ = $ + "05";</tag>
			</item>
			<item>
				june
				<tag>$ = $ + "06";</tag>
			</item>
			<item>
				july
				<tag>$ = $ + "07";</tag>
			</item>
			<item>
				august
				<tag>$ = $ + "08";</tag>
			</item>
			<item>
				september
				<tag>$ = $ + "09";</tag>
			</item>
			<item>
				october
				<tag>$ = $ + "10";</tag>
			</item>
			<item>
				november
				<tag>$ = $ + "11";</tag>
			</item>
			<item>
				december
				<tag>$ = $ + "12";</tag>
			</item>
		</one-of>
	</rule>

	<!-- Sub rule for day -->
	<rule id="day" scope="private">
		<tag>$="";</tag>
		<one-of>
			<item>
				first
				<tag>$ = $ + "01";</tag>
			</item>
			<item>
				second
				<tag>$ = $ + "02";</tag>
			</item>
			<item>
				third
				<tag>$ = $ + "03";</tag>
			</item>
			<item>
				fourth
				<tag>$ = $ + "04";</tag>
			</item>
			<item>
				fifth
				<tag>$ = $ + "05";</tag>
			</item>
			<item>
				sixth
				<tag>$ = $ + "06";</tag>
			</item>
			<item>
				seventh
				<tag>$ = $ + "07";</tag>
			</item>
			<item>
				eight
				<tag>$ = $ + "08";</tag>
			</item>
			<item>
				ninth
				<tag>$ = $ + "09";</tag>
			</item>
			<item>
				tenth
				<tag>$ = $ + "10";</tag>
			</item>
			<item>
				eleventh
				<tag>$ = $ + "11";</tag>
			</item>
			<item>
				twetlth
				<tag>$ = $ + "12";</tag>
			</item>
			<item>
				thirteenth
				<tag>$ = $ + "13";</tag>
			</item>
			<item>
				fourteenth
				<tag>$ = $ + "14";</tag>
			</item>
			<item>
				fifteenth
				<tag>$ = $ + "15";</tag>
			</item>
			<item>
				sisteenth
				<tag>$ = $ + "16";</tag>
			</item>
			<item>
				seventeenth
				<tag>$ = $ + "17";</tag>
			</item>
			<item>
				eighteenth
				<tag>$ = $ + "18";</tag>
			</item>
			<item>
				ninteenth
				<tag>$ = $ + "19";</tag>
			</item>
			<item>
				twentieth
				<tag>$ = $ + "20";</tag>
			</item>
			<item>
				twenty first
				<tag>$ = $ + "21";</tag>
			</item>
			<item>
				twenty second
				<tag>$ = $ + "22";</tag>
			</item>
			<item>
				twenty third
				<tag>$ = $ + "23";</tag>
			</item>
			<item>
				twenth fourth
				<tag>$ = $ + "24";</tag>
			</item>
			<item>
				twenty fifth
				<tag>$ = $ + "25";</tag>
			</item>
			<item>
				twenth sixth
				<tag>$ = $ + "26";</tag>
			</item>
			<item>
				twenty seventh
				<tag>$ = $ + "27";</tag>
			</item>
			<item>
				twenty eighth
				<tag>$ = $ + "28";</tag>
			</item>
			<item>
				twenty ninth
				<tag>$ = $ + "29";</tag>
			</item>
			<item>
				thirtieth
				<tag>$ = $ + "30";</tag>
			</item>
			<item>
				thirty first
				<tag>$ = $ + "31";</tag>
			</item>
		</one-of>
	</rule>

	<!-- Sub rule for year -->
	<rule id="year" scope="private">
		<tag>$="";</tag>
		<one-of>
			<item>
				two thousand eleven
				<tag>$ = $ + "2011";</tag>
			</item>
			<item>
				two thousand twelve
				<tag>$ = $ + "2012";</tag>
			</item>
			<item>
				two thousand thirteen
				<tag>$ = $ + "2013";</tag>
			</item>
			<item>
				two thousand fourteen
				<tag>$ = $ + "2014";</tag>
			</item>
			<item>
				two thousand fifteen
				<tag>$ = $ + "2015";</tag>
			</item>
		</one-of>
	</rule>
</grammar>

time.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<grammar xmlns="http://www.w3.org/2001/06/grammar" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.w3.org/2001/06/grammar http://www.w3.org/TR/speech-grammar/grammar.xsd"
	version="1.0" xml:lang="en-US" mode="voice" root="main">

	<!-- Main rule -->
	<rule id="main" scope="public">
		<tag>$="";</tag>
		<item>
			<ruleref uri="#hour" />
			<tag>$ = $ + $hour;</tag>
		</item>
		<item repeat="0-1">
			<item>o clock</item>
		</item>
		<item repeat="0-1">
			<ruleref uri="#minute" />
			<tag>$ = $ + ":" + $minute;</tag>
		</item>
		<item>
			<ruleref uri="#dayornight" />
			<tag>$ = $ + " " + $dayornight;</tag>
		</item>
		<item repeat="0-1">
			<ruleref uri="#zone" />
			<tag>$ = $ + " " + $zone;</tag>
		</item>
		<item>
			<one-of>
				<item>time</item>
				<item>standard time</item>
			</one-of>			
		</item>
	</rule>


	<!-- Sub rule for hour -->
	<rule id="hour" scope="private">
		<tag>$="";</tag>
		<one-of>
			<item>
				one
				<tag>$ = $ + "1";</tag>
			</item>
			<item>
				two
				<tag>$ = $ + "2";</tag>
			</item>
			<item>
				three
				<tag>$ = $ + "3";</tag>
			</item>
			<item>
				four
				<tag>$ = $ + "4";</tag>
			</item>
			<item>
				five
				<tag>$ = $ + "5";</tag>
			</item>
			<item>
				six
				<tag>$ = $ + "6";</tag>
			</item>
			<item>
				seven
				<tag>$ = $ + "7";</tag>
			</item>
			<item>
				eight
				<tag>$ = $ + "8";</tag>
			</item>
			<item>
				nine
				<tag>$ = $ + "9";</tag>
			</item>
			<item>
				ten
				<tag>$ = $ + "10";</tag>
			</item>
			<item>
				eleven
				<tag>$ = $ + "11";</tag>
			</item>
			<item>
				twelve
				<tag>$ = $ + "12";</tag>
			</item>
		</one-of>
	</rule>

	<!-- Sub rule for minute -->
	<rule id="minute" scope="private">
		<tag>$="";</tag>
		<one-of>
			<item>
				oh five
				<tag>$ = $ + "05";</tag>
			</item>
			<item>
				ten
				<tag>$ = $ + "10";</tag>
			</item>
			<item>
				fifteen
				<tag>$ = $ + "15";</tag>
			</item>
			<item>
				twenty
				<tag>$ = $ + "20";</tag>
			</item>
			<item>
				twenty five
				<tag>$ = $ + "25";</tag>
			</item>
			<item>
				thirty
				<tag>$ = $ + "30";</tag>
			</item>
			<item>
				thirty five
				<tag>$ = $ + "35";</tag>
			</item>
			<item>
				forty
				<tag>$ = $ + "40";</tag>
			</item>
			<item>
				forty five
				<tag>$ = $ + "45";</tag>
			</item>
			<item>
				fifty
				<tag>$ = $ + "50";</tag>
			</item>
			<item>
				fifty five
				<tag>$ = $ + "55";</tag>
			</item>
		</one-of>
	</rule>

	<rule id="dayornight" scope="private">
		<tag>$="";</tag>
		<one-of>
			<item>
				aye em
				<tag>$ = $ + "AM";</tag>
			</item>
						<item>
				A M
				<tag>$ = $ + "AM";</tag>
			</item>
			<item>
				pee em
				<tag>$ = $ + "PM";</tag>
			</item>
						<item>
				P M
				<tag>$ = $ + "AM";</tag>
			</item>
		</one-of>
	</rule>

	<!-- Sub rule for zone -->
	<rule id="zone" scope="private">
		<tag>$="";</tag>
		<one-of>
			<item>
				eastern
				<tag>$ = $ + "EST";</tag>
			</item>
			<item>
				central
				<tag>$ = $ + "CST";</tag>
			</item>
			<item>
				mountain
				<tag>$ = $ + "MST";</tag>
			</item>
			<item>
				pacific
				<tag>$ = $ + "PST";</tag>
			</item>
		</one-of>
	</rule>

</grammar>