Russia adopts the <a href="https://en.wikipedia.org/wiki/Gregorian_calendar" id="mw3w" rel="mw:WikiLink" title="Gregorian calendar">Gregorian calendar</a>.<sup about="#mwt58" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-10"}}' id="cite_ref-10" rel="dc:references" typeof="mw:Extension/ref"><a href="./February_14#cite_note-10" id="mw4A" style="counter-reset: mw-Ref 10;"><span class="mw-reflink-text" id="mw4Q">[10]</span></a></sup>
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