This paper presents an exhaustive study about the Temporal Expression (TE) influence in the task of Word Sense Disambiguation (WSD). The hypothesis was that previous identification of some words or word groups could improved the efficiency of WSD systems. In this case, the experiments carried out show that the identification of temporal expressions made up of one or more words (i.e. today or the following day) improves around 10% precision of the Word Domain Disambiguation Framework. The improvement of the WSD task is achieved by extracting temporal expressions from the corpus which allows us to limit the spread of a search across the EuroWordNet hierarchy. The corpus used to this research was the Spanish lexical sample task from Senseval-2.