WindowsTimeToUnixTimeWindowsTimeToUnixTime — converts from Windows time to Unix time.
WindowsTimeToUnixTime (wdate)
wdateThe date, in Windows time.
The date, in Unix time.
This function converts from Windows time to Unix time. If the
wdate is prior to January 1, 1970, the function
returns nil. If wdate is after
the end of the Unix epoch (03:14:08 UTC on January 19, 2038) then the returned
value will be greater than the acceptable input range for Unix date-based
functions.