"I look forward to all meetings today with world leaders, including my meeting with Vladimir Putin. Much to discuss," Trump wrote on Twitter.
The meeting between Russian President Vladimir Putin and his US counterpart Donald Trump on the sidelines of G20 Summit in Hamburg has been scheduled for 13:45 GMT on Friday.
The G20 summit is scheduled to take place July 7-8.
G20 summit is an annual event gathering the heads of governments and states of 20 major economies to discuss and promote financial stability around the globe, as well as some other pressing issues.