\documentclass[a4paper]{article}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage[margin=18mm]{geometry}
\usepackage[reference-date=2026-07-18]{kanban-board}

\pagestyle{empty}

% ISO input is unambiguous and is therefore convenient when task data are
% exchanged between documents. Each board normalizes that input for display.
\newcommand\dateformatboard[2]{%
  \begin{minipage}[t]{0.48\linewidth}
    \subsection*{#2}
    \begin{kanban}[columns={Upcoming},date-format=#1]
      \kanbantask[author=Alice,due=2099-07-18]
        {Upcoming}{Prepare the scheduled release}
    \end{kanban}
  \end{minipage}}

\begin{document}

\section*{Five date formats}

The package default is the US format. The other four formats can be selected
as package options, through \verb|\kbset|, or for one board as shown here.

\dateformatboard{us}{US: MM/DD/YYYY}
\hfill
\dateformatboard{english}{English: DD/MM/YYYY}

\bigskip

\dateformatboard{german}{German: DD.MM.YYYY}
\hfill
\dateformatboard{iso}{ISO: YYYY-MM-DD}

\bigskip

\dateformatboard{ymd}{Year first: YYYY/MM/DD}

\end{document}