Hypertext literature has been characterized as spatial construct by many of the critics involved with its aesthetics and poetics. Michael Joyce, Cathy Marshall, Mark Bernstein, Carolyn Guyer, George Landow, Stuart Moulthrop and many others have explored the way in which metaphors of visual space can inform hypertexts--impacting both meaning and process. Although these writers refer to the time/space continuum, their writing has been less concerned with temporal constructs--how time might influence the programming, writing, and reading of hypertext literature. Time factors, however, could be viewed as important elements in the way hypertexts are conceived and received. This paper seeks to raise questions about issues of time--and to suggest some possible categories that might be investigated. Significant information is coded into everything from the equipment- determined limitations of Machine Time to the author- controlled clues embedded in Mythic Time. To the extent that we make mental scripts of spatial parameters, readers and writers of hypertext fiction may build into the space of the cyberworld a complementary universe fully as rich in temporal experience. In both the Interface Experience and the Cognitive Structure, time is part of the inscription of coherent meaning for cyber-narratives and electronic poetry.