I had thought about this ambiguity back in March but got distracted by Irkutsk's "non-change" before I could mention it.  I agree, this would be quite confusing come October when Europe/Bucharest moves back to +02:00 (EET) and Europe/Kaliningrad stays on +03:00.  Following the system currently used by most of the other Russian zones, KALT seems like a logical choice for the identifier format.

--
Tim Parenti



On Mon, Jun 27, 2011 at 12:32, <yoshito_umaoka@us.ibm.com> wrote:
In 2011h, the GMT offset of Europe/Kaliningrad was changed from 2:00 to 3:00 by the new Russian law.

Zone Europe/Kaliningrad         1:22:00 -        LMT        1893 Apr
                         1:00        C-Eur        CE%sT        1945
                         2:00        Poland        CE%sT        1946
                         3:00        Russia        MSK/MSD        1991 Mar 31 2:00s
                         2:00        Russia        EE%sT        2011 Mar 27 2:00s
                         3:00        -        EET

The format - "EET" is used above, which is now different from other "EET" (generated from "EE%sT") used by Eastern European zones. For example, "10:00 EET" in Europe/Bucharest after the daylight-standard transition in this fall is actually  "11:00 EET" in Europe/Kaliningrad.

I think this is confusing and should use more distinctive format.

-Yoshito