SonoranDiaries observed that the question from the Chatterbot Challenge 2006 which most of the bots missed was "What season is it?"
Here's his solution, which adds a new capability to AIML bots:
<?xml version="1.0" encoding="UTF-8"?>
<aiml version="1.0">
<!-- Free software (c) 2006 Sonoran Diaries. -->
<!-- This program is open source code released under -->
<!-- the terms of the GNU General Public License -->
<!-- as published by the Free Software Foundation. -->
<!-- Complies with AIML 1.0 Tag Set Specification -->
<!-- as adopted by the ALICE A.I. Foundation. -->
<!-- Seasons.aiml written by SonoranDiaries -->
<!-- Compiled and edited by KnyteTrypper -->
<!-- Last edit July 2 2006 -->
<category>
<pattern>WHAT SEASON IS IT</pattern>
<template>
<script language="javascript">
var today = new Date()
var day = today.getDay()
var date = today.getDate()
var mon = today.getMonth()
var year = today.getYear()
var Mon
if(mon==0){
Mon="Winter"
}
if(mon==1){
Mon="Winter"
}
if(mon==2){
Mon="Spring"
}
if(mon==3){
Mon="Spring"
}
if(mon==4){
Mon="Spring"
}
if(mon==5){
Mon="Summer"
}
if(mon==6){
Mon="Summer"
}
if(mon==7){
Mon="Summer"
}
if(mon==8){
Mon="Fall"
}
if(mon==9){
Mon="Fall"
}
if(mon==10){
Mon="Fall"
}
if(mon==11){
Mon="Winter"
}
var Writedate = " It is " + Mon + " "
document.write("" +Writedate+ ".")
</script>
</template>
</category>
</aiml>