I made a little countdown script, where you enter a date (mm/dd/yy) and time (hh:mm:ss) and it will show the how long till that date/time arrives in a "weeks days hours minutes seconds" format
and when its pasts, it tells you how long ago it past aswell
i havent put it out for download or anything like that, but i tell yu if you read a few things in the help file, you can probably make one:
/help $time | $ctime | $asctime
/help $duration
/help $calc
i'll come back and post some of the notes i made when i was figuring out how to make one for ya