BBC says it started 07:00 BST (2am EST)
Guardian says they started 10am BST (5am EST)

I don’t know why this is so hard to figure out, but I didn’t see them so I can’t confirm the time.

It seems they were deleted at 12:30pm EST.

So if Guardian is right… then they were up for 2.5 hours…

Again, I don’t know. I would like to see a confirmed timeline.