The date format under the reputation graph in user profile section doesn't reflect national standards:
фев 14 '17 should be at least
14 фев '17 on Stack Overflow in Russian. Correct format already used in the textual represention of reputation on subtabs "Post" or "Time" on the Reputation tab of the profile page. As described on related question:
BTW please take a look at related bug report on ruSO.Meta about date format on moderator election block on the right side of the page.