According to NIST, Eastern Time is UTC-4. And currently it is 5:04pm EDT, and in London (a city in GMT/UTC+0) it is 10:04pm. Which is 5 hours ahead (because America is dumb and has daylight savings).

Which is also backed up by your article. Americas/Indianapolis is the one I normally use since I'm in Indiana.

[–] Deebster@programming.dev 2 points 12 hours ago

Then the UK's equally dumb: it was 10:04 pm BST (GMT+1) cos daylight savings is a thing in most of Europe too. At least it's synchronised across Europe^[The EU is planning on killing daylight savings but I have no idea if the UK will do the sensible thing and go along when/if this happens] so you just need to remember that most^[thanks for making it more confusing, Mexico] of North America changes a few weeks earlier.

Also, the UK says GMT/BST which is nice and clear - calling both EST and EDT "Eastern Time" makes even more of a mess!

And yes, I've just rediscovered you can use footnotes, why do you ask?