Under the revised programme approved on Wednesday, the congress will cut its agenda by one and a half days compared with the initial plan.
The congress was originally scheduled to run from January 19 to 25, with 1,586 delegates representing more than 5.6 million Party members nationwide.
It has elected a presidium of 16 Politburo members, a secretariat of five members and a credentials committee of 13 members.
The congress is due to vote to elect 180 full members and 20 alternate members of the Party Central Committee.
A fireworks display will be held near My Dinh National Stadium in Hanoi on the evening of January 23 to celebrate the success of the congress.
The 30-minute display, starting at 8.10 pm, is expected to be the largest fireworks event ever staged in the capital and will be followed by a special arts programme.
