Steps to update Time Zone data on older systems:
cd /tmp
mkdir tzupdate
cd tzupdate
wget ‘ftp://elsie.nci.nih.gov/pub/tz[cd]*.tar.gz’
gzip -dc tzd*.tar.gz | tar xvf -
gzip -dc tzc*.tar.gz | tar xvf -
zic -d zoneinfo northamerica
tar -cvf /usr/share/zoneinfo_backup.tar /usr/share/zoneinfo/
cp -Rf zoneinfo/ /usr/share/
rm /etc/localtime
ln -s /usr/share/zoneinfo/PST8PDT /etc/localtime
zdump -v /usr/share/zoneinfo/PST8PDT | grep 2007
zdump -v /usr/share/zoneinfo/America/Los_Angeles | grep 2007
zdump -v /etc/localtime | grep 2007
Make sure all report something like this with Mar 11 and Nov 4 as the dates:
/usr/share/zoneinfo/PST8PDT Sun Mar 11 09:59:59 2007 UTC = Sun Mar 11 01:59:59 2007 PST isdst=0 gmtoff=-28800
/usr/share/zoneinfo/PST8PDT Sun Mar 11 10:00:00 2007 UTC = Sun Mar 11 03:00:00 2007 PDT isdst=1 gmtoff=-25200
/usr/share/zoneinfo/PST8PDT Sun Nov 4 08:59:59 2007 UTC = Sun Nov 4 01:59:59 2007 PDT isdst=1 gmtoff=-25200
/usr/share/zoneinfo/PST8PDT Sun Nov 4 09:00:00 2007 UTC = Sun Nov 4 01:00:00 2007 PST isdst=0 gmtoff=-28800
If they match, you’re done.