答案1
\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
% draw horizontal line
\draw (0,0) -- (8,0);
% draw vertical lines
\foreach \x in {0,4,8}
\draw (\x cm,3pt) -- (\x cm,-3pt);
% draw nodes
\draw (0,0) node[below=3pt] {7:00 } node[above=3pt] {Start};
\draw (4,0) node[below=3pt] {7:15} node[above=3pt] {Middle};
\draw (8,0) node[below=3pt] {7:30} node[above=3pt] {End};
\end{tikzpicture}
\end{document}