The first-ever meeting between a U.S. president and a North Korean leader was to kick off at 9am on Tuesday (2am BST) with a handshake, an image sure to be devoured from Washington to Pyongyang and beyond.
Hosting Kim Yong Nam, North Korea's ceremonial head of state, Putin said the historic summit with the U.S. president was "without doubt just the first step towards a full-blown settlement".
This offers a fairly limited amount of time to discuss the breadth of issues on the table - including the denuclearization of the Korean Peninsula, which is the Trump administration's ultimate goal in terms of negotiations with North Korea.
7 p.m. Tuesday / 7 a.m. Tuesday: Trump departs Paya Lebar Air Base in Singapore, en route to Guam, with stops also planned in Hawaii and Joint Base Andrews in Maryland.
For Trump, Singapore represents a golden opportunity to overshadow the negative headlines he generated from a contentious G-7 summit.
Trump said Tuesday at the beginning of expanded discussions with aides from both countries that "We will solve a big problem" and "a big dilemma". Trump briefly called off the summit a few weeks ago before agreeing again to the meeting.
Amid a landmark summit between US President Donald Trump and the young North Korean strongman, Rodman appeared on CNN to voice hope, and vindication.
Emphasizing Tehran's distrust, Iranian Foreign Minister Javad Zarif referred to Trump as the "habitual Deal-Breaker-in-Chief" in a tweet on Monday without explicitly mentioning any names.
The state-run Global Times daily on Monday crowed, "China has played an important role in setting stage for the Trump-Kim summit" - by providing a charter plane that took Kim to Singapore. Since then, he's launched almost 100 missiles and conducted North Korea's most powerful nuclear tests.
He said he expected the Trump-Kim summit to "go fairly well", but added "people should not expect too much for the first time".
"And we'll see how far we get, but I'm very optimistic that we will have a successful outcome from tomorrow's meeting between these two leaders".