Returns the serial number of the time represented by date_text
static int TimeValue( double& dtime, LPCTSTR time_text );
A reference to a value that will contain a serial time if the function succeeds.
A string containing a time. Any date portion will be ignored.
Zero if the function has been called successfully; non-zero if the function could not be called. See Error codes for a list of return values.
See the Microsoft Excel on-line Help for full details about this function.