Upvote:7
According to the new style. Even though the Revolution is called "October Revolution", it is celebrated in November, which may be confusing to some.
The date of the Tsar's abdication is not celebrated and totally unknown to the masses.
Upvote:8
None of the events are celebrated in Russia nowadays. In Soviet times, only the day of the October Revolution was celebrated, on the 7th November, which is according to the New-Style calendar. In history textbooks, both dates for a particular event (e.g., abdication of the czar) are usually given.