President Donald J. Trump sent out a tweet ahead of his historic meeting with North Korean Leader Kim Jong-un.

Trump tweeted: Meetings between staffs and representatives are going well and quickly….but in the end, that doesn’t matter. We will all know soon whether or not a real deal, unlike those of the past, can happen!

Trump said that upon meeting Kim, he’d know within the first minute if the conversation was going to yield a positive result.

The talks will begin at 9 p.m. Eastern on Monday, June 11, which will be 9 a.m. on Tuesday Singapore time.