I am trying to add some "time" information to my online-fields in biblatex. I tried to use the note entry, but that won't work as intended.
Right now I got the following:
\documentclass[a4paper,
oneside,
12pt,
bibliography=totocnumbered,
listof=totocnumbered
]{scrreprt}
\usepackage[english, ngerman]{babel}
\usepackage[babel,german=quotes]{csquotes}
\usepackage[utf8]{inputenc}
\usepackage[automark]{scrpage2}
\usepackage[backend=biber, style=authoryear, urldate=comp, dateabbrev=false]{biblatex}
\bibliography{source}
\DeclareFieldFormat{url}{\newline\url{#1}}
\DeclareFieldFormat{urldate}{\addcomma\space#1}
\begin{document}
Latex is science \parencite{stack}
\printbibliography
\end{document}
And the file source.bib looks like:
@online{stack,
author = {Stack},
title = {Why Latex is science},
month = {april},
year = 2012,
url = {www.tex.stackexchange.com},
urldate = {2013-04-29},
note = "14.44 Uhr",
}
This currently gives me the following output:

What I really need right now is this:
Stack (2012): Why Latex is science, URL: www.tex.stackexchange.com, 29.4.2013, 14.44 Uhr.
So basically:
- Add time information at the end
- Add "URL: "-label in front of the actual url
- change some periods to colon or comma
Any help is appreciated!
Update 1
So I am almost there. The time is added (thanks to Guido). I only need some more field formating. The code part looks like this:
\documentclass[a4paper,
oneside,
12pt,
bibliography=totocnumbered,
listof=totocnumbered
]{scrreprt}
\usepackage[english, ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage[babel,german=quotes]{csquotes}
\usepackage[automark]{scrpage2}
\usepackage[]{url}
\usepackage[backend=biber, style=authoryear, urldate=comp, dateabbrev=false]{biblatex}
\bibliography{source}
%\begin{filecontents}{biblatex-dm.cfg}
% \DeclareDatamodelFields[type=field,datatype=literal,skipout=false]{urltime}
%\end{filecontents}
\DeclareFieldFormat{date}{#1} % Not sure with this one
\DeclareFieldFormat{title}{#1\addcomma}
\DeclareFieldFormat{url}{\newline\bibstring{URL}\addcolon\addspace\url{#1}}
\DeclareFieldFormat{urltime}{#1}
\DeclareFieldFormat{urldate}{\addcomma\space#1\addcomma\addspace\printfield{urltime}}
\begin{document}
Latex is science \parencite{stack}
\printbibliography
\end{document}
And here's a colorful visualization of the way it should be in the end:


!. Then, other users with enough reputation can add the!back. And: Welcome! – mafp Apr 29 '13 at 21:44