Baratunde Thurston reckons you can, with Gmail.
One of the up and coming comedians who also moonlights on Newsnight, Baratunde Thurston spotted something unusual in his Gmail account… Time Travel!
In his words, he received an incoming email alert, and on opening it, was given the delightfully prescient information that it would arrive “in two minutes.”
Now if only they could do that with horses…
Tip of the hat to the evidence of Timelords running Gmail and Google?