Fix spelling, grammar, usage, and markup.
diff --git a/Doc/lib/libtime.tex b/Doc/lib/libtime.tex
index 6fe11ec..6597ac5 100644
--- a/Doc/lib/libtime.tex
+++ b/Doc/lib/libtime.tex
@@ -295,10 +295,11 @@
any missing data is \code{(1900, 1, 1, 0, 0, 0, 0, 1, -1)} .
Support for the \code{\%Z} directive is based on the values contained in
-\code{tzname} and whether \code{daylight} is true. Because of this
-it is platform-specifc sans recognition for UTC and GMT which are
+\code{tzname} and whether \code{daylight} is true. Because of this,
+it is platform-specific without recognition for UTC and GMT which are
always known (and are considered to be non-daylight savings
timezones).
+\end{funcdesc}
\begin{datadesc}{struct_time}
The type of the time value sequence returned by \function{gmtime()},