erickson@chief% zdump -v EST5EDT|grep 2008
EST5EDT  Sun Mar  9 06:59:59 2008 UTC = Sun Mar  9 01:59:59 2008 EST isdst=0 gmtoff=-18000
EST5EDT  Sun Mar  9 07:00:00 2008 UTC = Sun Mar  9 03:00:00 2008 EDT isdst=1 gmtoff=-14400
EST5EDT  Sun Nov  2 05:59:59 2008 UTC = Sun Nov  2 01:59:59 2008 EDT isdst=1 gmtoff=-14400
EST5EDT  Sun Nov  2 06:00:00 2008 UTC = Sun Nov  2 01:00:00 2008 EST isdst=0 gmtoff=-18000