But spokesman Mikhail Kamynin said a meeting between Vladimir Putin and Mikheil Saakashvili could take place later.
"It [the timetable] does not provide for an opportunity to hold a separate substantial bilateral conversation," Kamynin said. "But we believe a conversation with Mikheil Saakashvili could take place in the future."
President Saakhashvili had been due to arrive in the Russian capital for the meeting of leaders from the Commonwealth of Independent States, a loose union of 11 post-Soviet nations, but withdrew from the summit Friday.
A source within Saakashvili's circle said one possible reason for the president's withdrawal from the summit was that the mooted meeting might not have taken place.
Saakashvili had earlier said he hoped to talk with Putin about a solution to the peacekeeping dispute in the South Caucasus state's breakaway regions and other issues complicating bilateral relations.
A Kremlin source, however, said Friday he was surprised at the Georgian leader's decision not to attend the summit.
"The summit's informal format means the agenda and timetable for bilateral meetings are not set in stone," the source said.