Converting Unix time stamp to a date format.

Does anyone know where I can find the formula for converting a timestamp
to a date format? I can't use any of the functions I typically would. I
get the timestamp in an xml format. So far I can't find a xslt formula
but I can hack one up in mozilla if I can figure out how.

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Carl Parrish (cparrish@carlparrish.com)
http://www.carlparrish.com
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Registered Linux User #295761 http://counter.li.org