bug#8241: Bug#618009: date: invalid date `TZ="America/Chicago" now' but Europe/Paris OK

[jidanni]

Package: coreutils
Version: 8.5-1
File: /bin/date
X-debbugs-cc: address@hidden

for i in Asia/Taipei America/Chicago America/New_York Europe/Paris
do for j in monday now yesterday today tomorrow 12pm
    do echo TZ=\"$i\" $j; done; done|date -f -

gives
date: invalid date `TZ="America/Chicago" now' etc.
ONLY when in America, and ONLY when using now etc.
Monday etc. don't trigger the bug.

By the way, America is undergoing a Daylight Savings Time jump right
about now.