5_6

\documentclass{standalone}
\usepackage[T1]{fontenc}
\usepackage[latin2]{inputenc}
\usepackage[english]{babel}
\usepackage{tikz}
\usepackage{times}
\usetikzlibrary{calc,through,backgrounds,positioning,fit}
\usetikzlibrary{shapes,arrows,shadows, calendar}

\begin{document}

\tikzstyle{place}=[shape=circle, draw, minimum height=10mm]
\tikzstyle{trig}=[shape=circle, draw, dashed, minimum height=10mm]
\tikzstyle{trans}=[shape=rectangle, draw, minimum height=6mm, minimum width=12mm]

\centering
\begin{tikzpicture}[scale=1,inner sep=0.4mm]
\calendar [dates=2015-04-01 to 2015-04-last, week list, month label above centered, month text={\%mt} \%y-]
if (Sunday) [red]
if (Saturday) [pink]
if (equals=2015-04-06) [red]
;
\end{tikzpicture}

\end{document}