Wednesday, September 29, 2010

verify timezone data in unix

With daylight savings approaching...

> /usr/sbin/zdump -v /etc/localtime | grep 2010

/etc/localtime Sat Apr 3 15:59:59 2010 UTC = Sun Apr 4 02:59:59 2010 EST isdst=1 gmtoff=39600
/etc/localtime Sat Apr 3 16:00:00 2010 UTC = Sun Apr 4 02:00:00 2010 EST isdst=0 gmtoff=36000
/etc/localtime Sat Oct 2 15:59:59 2010 UTC = Sun Oct 3 01:59:59 2010 EST isdst=0 gmtoff=36000
/etc/localtime Sat Oct 2 16:00:00 2010 UTC = Sun Oct 3 03:00:00 2010 EST isdst=1 gmtoff=39600

> /usr/sbin/zdump -v /etc/localtime | grep 2011

/etc/localtime Sat Apr 2 15:59:59 2011 UTC = Sun Apr 3 02:59:59 2011 EST isdst=1 gmtoff=39600
/etc/localtime Sat Apr 2 16:00:00 2011 UTC = Sun Apr 3 02:00:00 2011 EST isdst=0 gmtoff=36000
/etc/localtime Sat Oct 1 15:59:59 2011 UTC = Sun Oct 2 01:59:59 2011 EST isdst=0 gmtoff=36000
/etc/localtime Sat Oct 1 16:00:00 2011 UTC = Sun Oct 2 03:00:00 2011 EST isdst=1 gmtoff=39600


Perfect : )

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