Some time ago I've asked a question about Timelines, many solutions were given, but in the end I decided to go with TikZ and also presented my solution. But I couldn't have done it without Torbjørn T.'s comment, where he suggested to make the creation of dates automatic, and this helped since I didn't need to type all of that myself and above all, it saved space in my Tex document. The solution was1:
\documentclass[10pt]{article}
\usepackage[a4paper, landscape]{geometry}
\usepackage[utf8]{inputenc}
\usepackage{rotating}
\usepackage{pgfplots}
%\usepackage{changepage}
\usepackage{tikz}
\usetikzlibrary{arrows,backgrounds,snakes}
\begin{document}
\begin{tikzpicture}
%draw horizontal line
\draw[|->, -latex] (0,0) -- (17,0);
\draw[-, dashed] (-1,0) -- (0,0);
%draw years
\foreach \x [evaluate=\x as \year using int(1790+\x*10)] in {0,1,...,17}{
\draw (\x,0) node[below=7pt,anchor=east,xshift=0,rotate=45] {$\year$};
}
\draw[] (0,-0.1) -- (0,0.1);
\draw[] (1,-0.1) -- (1,0.1);
\draw[] (2,-0.1) -- (2,0.1);
\draw[] (3,-0.1) -- (3,0.1);
\draw[] (4,-0.1) -- (4,0.1);
\draw[] (5,-0.1) -- (5,0.1);
\draw[] (6,-0.1) -- (6,0.1);
\draw[] (7,-0.1) -- (7,0.1);
\draw[] (8,-0.1) -- (8,0.1);
\draw[] (9,-0.1) -- (9,0.1);
\draw[] (10,-0.1) -- (10,0.1);
\draw[] (11,-0.1) -- (11,0.1);
\draw[] (12,-0.1) -- (12,0.1);
\draw[] (13,-0.1) -- (13,0.1);
\draw[] (14,-0.1) -- (14,0.1);
\draw[] (15,-0.1) -- (15,0.1);
\draw[] (16,-0.1) -- (16,0.1);
\end{tikzpicture}
\end{document}
The result was:

... And it continues (too long to fit here). Now I want to recreate this but with hours and minutes, so that at the bottom of the line I can see 00:00 then 01:00 and so on.
This could be indefinite, as I have the intention of making a long horizontal document (not going to be printed, only digital use so no problem).
I have tried tweaking that code and searching this site but to no avail. How should I go about it? Is the code good for years but not for time as I want it? I really don't know where to start.
1: This is actually a minimal working example. I'm referring to the lines reported in the comment.

HH:MMinstead of years? Replacing the\foreachwith\foreach \x in {0,...,17}{ \draw (\x,0) node[below=7pt,anchor=east,xshift=0,rotate=45] {$\x\colon 00$}; }seems to work just fine. You can also eliminate all the manualdrawcommands by using\draw[] (\x,-0.1) -- (\x,0.1);within the\foreachloop. – Peter Grill Oct 05 '12 at 18:43{$\x\colon 00$};, just touching theusing int(1790+\x*10)]part which gave errors. I'm not that expert. :D Now that you mention it, I did the automatized thing for the lines somewhere else, this one was a pretty old code. But thanks anyway. :) – Alenanno Oct 05 '12 at 19:01