Link: ESX Timezone Confusion at

There seems to be some confusion about patching esx2 for the US 2007 DST changes?

Here is VMware’s KB on the subject.

So how do I determine when DST starts and ends on my box?  Seems like a logical question.  Try This command…

zdump -v /etc/localtime | grep 2007

You want to see Daylight Savings Time start on March 11 and end on November 4.