\HeaderA{tojulian}{Convert Calendar Date to Julian Time}{tojulian}
\keyword{programming}{tojulian}
\begin{Description}\relax
Convert Calendar Date in the form of "\%m/\%d/\%Y" to Julian time, number of days since 1970-01-01 in the time zone of "GMT".
\end{Description}
\begin{Usage}
\begin{verbatim}
tojulian(x)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{x}] Date to convert
\end{ldescription}
\end{Arguments}
\begin{Author}\relax
Robert Gentleman
\end{Author}
\begin{Examples}
\begin{ExampleCode}
ds <- tojulian(c("4/8/2000", "4/30/2000"))
ds[2]-ds[1]
\end{ExampleCode}
\end{Examples}

