Train 019 / 020 Beijing - Moscow - Beijing. The Vostok train began service from Moscow to Beijing in 2001. It is a Trans-Manchurian train and therefore does not pass through Mongolia (which means that a Mongolian visa is not required). Many people from Russia and China use this train to transport their wares between the 2 countries - so, you'll see many people with large bags on the train. The train is quite modern with comfortable 1st and 2nd class compartments and a good restaurant. Wheels are changed on the boarder Russia-China. It takes about few hours.
Train 20 (Vostok) departure from Moscow once a week on Fridays (23:55, Moscow time).
This train arrives to Beijing on Fridays (05:20, local time).