AKiCiF: Time Travel Novels

[rolanni]

A friend writes to ask if I could recommend a book or books: "...that features time travel into the future. Or perhaps into A future from wherever in time one starts. Most of the time-travel books either of us could think of feature stories about going into the past and usually the effects of that on the present, or whatever."

She has since identified the following novels as meeting the above criteria:
The Time Machine
Time Slips
The Accidental Time Machine
The Forever War

...and the question has become a quest: What other books feature time travel into (a) future?

Anybody?