pgfgantt

gantt.tex

\documentclass[11pt,a4paper,uplatex,dvipdfmx]{ujarticle} 
\usepackage{pgfgantt}

\begin{ganttchart}[
	hgrid, vgrid,
	y unit chart = 0.8cm,
	title height = 1,
	y unit title = 0.6cm]{1}{24}
  \gantttitle{H30}{12}   \gantttitle{H31}{12}\\
  \gantttitlelist{4,...,12}{1} \gantttitlelist{1,2,3}{1}
  \gantttitlelist{4,...,12}{1} \gantttitlelist{1,2,3}{1} \\
\ganttbar{task 1}{1}{6} \\
\ganttbar{task 2}{7}{12} \\
\ganttbar{task 3}{10}{12} \\
\ganttbar{task 4}{13}{18} \\
\ganttbar{task 5}{19}{24}
\end{ganttchart}