Just for one hour !

[HappySkeptic]

You can read about a number of hypotheses about going back in time, but none actually work, even in theory, without inventing negative mass, and I'm sure ignoring all sorts of inconsistencies. This includes exotic wormholes (and even then, you couldn't go back earlier than the creation of the wormhole).

Now, in a rotating universe, one could have infinite time loops as solutions to Einstein's equations, but I'm not sure what that even means (though a quick search shows some people think they could be part of the solution to black holes).

[AniKoferBo]

Flux Capacitor.

Can't believe I missed this

[Brian37]

First hop over to another universe where time goes in the opposite direction to ours. Wait one hour, then hop back.

Fun fact, when "No Way Out" was filmed with Keven Costner, it was filmed in Georgetown, a suburb of DC. But at the time there was no subway in that enclave. He actually got on the Baltimore Subway in that movie. 

My baby takes the morning train he works from 9 to 5 and then. 

NO NO NO, I AM NOT, I AM NOT OLD. 

Oh sorry, lost my train of thought. There was a guy from Nantucket. WAS IT OVER WHEN THE GERMANS BOMBED PEARL HARBOR? You want the truth, you cant handle the truth. You're going to need a bigger thread. 

This response brought to you by the fine folks who wrote the ending of Terminator 2 "Judgment Day" ending where the liquid melty guy get's smelted.

[AniKoferBo]

Why not just wait until 2:00 A.M. on the first Sunday in November?

Have no idea!
Can you explain more?

[BrianSoddingBoru4]

How do we know we’re not already living one hour in the past?

Boru

[BrianSoddingBoru4]

Why not just wait until 2:00 A.M. on the first Sunday in November?

Have no idea!
Can you explain more?

She means Daylight Saving Time, which I don’t think applies to you.

Boru