use C stdlib local time functions, not Win32 functions.
Win32 time functions slowed down with Windows XP SP3.
Change all platforms to use equivalent years between 2008 and
2035 for years outside the range 1970..2037.
Review URL: http://codereview.chromium.org/12824

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@896 ce2b1a6d-e550-0410-aec6-3dcde31c8c00