mkdocs-material/material/.icons/octicons/calendar-16.svg

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path fill-rule="evenodd" d="M4.75 0a.75.75 0 0 1 .75.75V2h5V.75a.75.75 0 0 1 1.5 0V2h1.25c.966 0 1.75.784 1.75 1.75v10.5A1.75 1.75 0 0 1 13.25 16H2.75A1.75 1.75 0 0 1 1 14.25V3.75C1 2.784 1.784 2 2.75 2H4V.75A.75.75 0 0 1 4.75 0zm0 3.5h8.5a.25.25 0 0 1 .25.25V6h-11V3.75a.25.25 0 0 1 .25-.25h2zm-2.25 4v6.75c0 .138.112.25.25.25h10.5a.25.25 0 0 0 .25-.25V7.5h-11z"/></svg>