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(:Test: hours-from-time-15                               :)
(:Written By: Carmelo Montanez                           :)
(:Date: June 6, 2005                                     :)
(:Purpose: Evaluates The "hours-from-time" function      :)
(:as part of a "numeric-unary-minus" expression.         :) 
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-fn:hours-from-time(xs:time("10:00:00Z"))