1\documentclass[a4paper]{article}
2\usepackage[latin1]{inputenc}
3\begin{document}
4\sf
5\begin{flushleft}
6\section*{\sf 04-20 (Saturday)}
7\begin{tabular}{r@{--}lp{0.7\textwidth}r}
8\smallskip
917:25 & 18:00 &
10{ \small \raggedright
11First in clump
12} & foo \\
13\smallskip
1417:25 & 18:00 &
15{ \small \raggedright
16Second in clump
17} & foo \\
18\end{tabular} \\
19\section*{\sf 12-28 (Friday)}
20\begin{tabular}{r@{--}lp{0.7\textwidth}r}
21\smallskip
2211:31 &  &
23{ \small \raggedright
24A
25} & 1 \\
26\smallskip
2711:31 &  &
28{ \small \raggedright
29B
30} & 1 \\
31\smallskip
3211:31 &  &
33{ \small \raggedright
34A
35} & 1 \\
36\smallskip
3711:31 &  &
38{ \small \raggedright
39D
40} & 1 \\
41\smallskip
4211:31 & 11:31 &
43{ \small \raggedright
44B
45} & 1 \\
46\end{tabular} \\
47\section*{\sf 05-17 (Friday)}
48\begin{tabular}{r@{--}lp{0.7\textwidth}r}
49\smallskip
5002:02 BST &  &
51{ \small \raggedright
52t
53} & c \\
54\smallskip
5502:02 &  &
56{ \small \raggedright
57t
58} & c \\
59\end{tabular} \\
60\end{flushleft}
61\end{document}
62