another coffee, please

The command I’m using to check that DST will change at the right time reads out of the tzdata file:

zdump -v Australia/Sydney | grep 2008

It returns output like so:

Australia/Sydney Sat Apr 5 15:59:59 2008 UTC = Sun Apr 6 02:59:59 2008 EST isdst=1 gmtoff=39600
Australia/Sydney Sat Apr 5 16:00:00 2008 UTC = Sun Apr 6 02:00:00 2008 EST isdst=0 gmtoff=36000
Australia/Sydney Sat Oct 4 15:59:59 2008 UTC = Sun Oct 5 01:59:59 2008 EST isdst=0 gmtoff=36000

Australia/Sydney Sat Oct 4 16:00:00 2008 UTC = Sun Oct 5 03:00:00 2008 EST isdst=1 gmtoff=39600

Good for checking that your clocks are in order!