Final answer:
The duration of Theseus' absence in Hippolytus is not specified in the play.
Step-by-step explanation:
The duration of Theseus' absence in Hippolytus is not specified in the text. The play focuses on the events surrounding Hippolytus and Phaedra, rather than the time period Theseus is away. Therefore, the exact length of time Theseus is gone is not mentioned in the play. It is important to note that the play Hippolytus is a work of Ancient Greek tragedy written by Euripides.