I'm currently listening to an audio recording of The Time Machine by H.G. Wells, and liking it quite a bit more than I expected. Searching for poems about time travel turned up
this one.
Time Travel
By Ian Beckett
I was fifty-three this morning,
But I feel so much older now,
Having lived a lifetime in a day.
It started like a thousand others,
Time suddenly skipped a track,
Everyone I know is dead and gone-
I didn't even get to say goodbye.
I never knew that time was precious,
This morning was a hundred years ago.