arguments.
Also, both {\tt Add()} and {\tt Subtract()} have both const and non-const
-version. The first one returns a new obejct which represents the
+version. The first one returns a new object which represents the
sum/difference of the original one with the argument while the second form
modifies the object to which it is applied. The operators $-=$ and $+=$ are
defined to be equivalent to the second forms of these functions.
\membersection{Parsing and formatting dates}\label{datetimeparsing}
-These functions convert wxDateTime obejcts to and from text. The
+These functions convert wxDateTime objects to and from text. The
conversions to text are mostly trivial: you can either do it using the default
date and time representations for the current locale (
\helpref{FormatDate}{wxdatetimeformatdate} and