Re:

[gary%duzan.org@localhost]

=> At Wed, 25 Nov 2015 10:00:00 +0000 (UTC) I had a cron job run:
=>
=> for tz in America/Los_Angeles America/Chicago America/New_York \
=>     Asia/Tokyo Europe/Berlin ; do
=> TZ=$tz date -d "Wednesday 22:00utc" +"%A %B %d %I:%M %p %z %Z ${tz}"  ;
=> done
=>
=> This resulted in:
=>
=> Wednesday November 25 12:00 PM -0800 PST America/Los_Angeles
=> Wednesday November 25 02:00 PM -0600 CST America/Chicago
=> Wednesday November 25 03:00 PM -0500 EST America/New_York
=> Wednesday December 02 05:00 AM +0900 JST Asia/Tokyo
=> Wednesday November 25 09:00 PM +0100 CET Europe/Berlin
=>
=>
=> Notice the December 02 above.
=>
=> An easy workaround is to also add today's date to the -d parsedate
=> string above.
=>
=> Is this expected behavior? Undefined? A bug?

   FWIW, I get similar results on my Linux box (Ubuntu 14.04).

Wednesday November 25 02:00 PM -0800 PST America/Los_Angeles
Wednesday November 25 04:00 PM -0600 CST America/Chicago
Wednesday November 25 05:00 PM -0500 EST America/New_York
Thursday December 03 07:00 AM +0900 JST Asia/Tokyo
Wednesday November 25 11:00 PM +0100 CET Europe/Berlin

                                      Gary Duzan