Highlight a full week (or a range of days) in tikz calendar

I want to highlight a range of dates in a tikz calendar (e.g. vacations or conferences). My approach currently is to simply (stupidly?) highlight every single day (see the code), but there is for sure a better option.

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{calendar}

\begin{document}
\begin{tikzpicture}
\calendar[dates=2018-10-01 to 2018-10-last,
week list,
month label above centered]
if (weekend) [black!50]
if (equals=2018-10-01) [black!50]
if (equals=2018-10-02) [black!50]
if (equals=2018-10-03) [black!50]
if (equals=2018-10-04) [black!50];
\end{tikzpicture}
\end{document}


As I said, this works (see the screenshot), but is there an option how to specify a range of dates within the if condition (or somewhere else) ?

For sure! Use if (between=date and date) instead of multiple if (equals=date).

\begin{document}
\begin{tikzpicture}
\calendar[dates=2018-10-01 to 2018-10-last,
week list,
month label above centered]
if (weekend) [black!50]
if (equals=2018-10-01) [black!50]
if (equals=2018-10-02) [black!50]
if (equals=2018-10-03) [black!50]
if (equals=2018-10-04) [black!50]
if (between=2018-10-15 and 2018-10-18) [red!50];
\end{tikzpicture}
\end{document}


• the simple answer I was hoping for, thanks :) – Alf Oct 17 '18 at 10:37