public static java.util.Date getJavaDate(double date,
java.util.TimeZone tz)
Given an Excel date with using 1900 date windowing, and converts it to a java.util.Date. Excel Dates and Times are stored without any timezone information. If you know (through other means) that your file uses a different TimeZone to the system default, you can use this version of the getJavaDate() method to handle it.
Parameters:
date - The Excel date.
tz - The TimeZone to evaluate the date in
Returns:
Java representation of the date, or null if date is not a valid Excel date