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(:Test: op-subtract-dayTimeDuration-from-time-2          :)
(:Written By: Carmelo Montanez                           :)
(:Date: July 1, 2005                                     :)
(:Purpose: Evaluates The "subtract-dayTimeDuration-from-time" operator :)
(:as per example 2 (for this function) from the F&O specs. :)
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xs:time("08:20:00-05:00") - xs:dayTimeDuration("P23DT10H10M") 