[Bug 1222345] Re: Wrong DST dates in Israel

[Yaron]

Good catch!
Probably originated from the table on the following Wikipedia article:
https://en.wikipedia.org/wiki/Talk:Israel_Summer_Time

Although the diff says:
 # Rule	NAME	FROM	TO	TYPE	IN	ON	AT	SAVE	LETTER/S
 Rule	Zion	2013	max	-	Mar	Fri>=23	2:00	1:00	D
-Rule	Zion	2013	2026	-	Oct	Sun>=2	2:00	0	S
-Rule	Zion	2027	only	-	Oct	Mon>=3	2:00	0	S
-Rule	Zion	2028	max	-	Oct	Sun>=2	2:00	0	S
-# The following rules are commented out for now, as they break older
-# versions of zic that support only signed 32-bit timestamps, i.e.,
-# through 2038-01-19 03:14:07 UTC.
-#Rule	Zion	2028	2053	-	Oct	Sun>=2	2:00	0	S
-#Rule	Zion	2054	only	-	Oct	Mon>=3	2:00	0	S
-#Rule	Zion	2055	2080	-	Oct	Sun>=2	2:00	0	S
-#Rule	Zion	2081	only	-	Oct	Mon>=3	2:00	0	S
-#Rule	Zion	2082	max	-	Oct	Sun>=2	2:00	0	S
+Rule	Zion	2013	max	-	Oct	lastSun	2:00	0	S

And lastSunday of October is October 27.

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https://bugs.launchpad.net/bugs/1222345

Title:
  Wrong DST dates in Israel

Status in “tzdata” package in Ubuntu:
  Confirmed

Bug description:
  DST start/end times were changed during 2013, DST should only end in
  more than a month from the actual change happened.

  In order to solve this bug the tzdata package should be updated to the
  most recent version (currently tzdata 2013d-1) which contains the fix.

  Please notice the tzdata has no dependencies but tzdata-java which
  also needs to be updated (both versions are already updated in Debian
  testing).

  This is pretty urgent, releases not affected:
  Saucy Salamander (13.10), all others are affected.

  The change is described in the following diff:
  http://launchpadlibrarian.net/146460855/tzdata_2013c-2ubuntu1_2013d-1ubuntu1.diff.gz

  The updated packages from Debian were installed in my personal system
  (12.04) and nothing seems broken so far, the package deployment was
  successful.

  
  SRU Template starts here:
  [Impact] 

   * DST ends prematurely causing Ubuntu systems to work with a 1 hour
  diff, the actual change should take place on October 27th.

   * tzdata was updated accordingly, time difference could cause many
  issues.

   * tzdata was changes this June, fix was included in this release by
  Ephraim Silverberg  on 2013-06-27.

  [Test Case]

   * All of the affected systems are one hour behind.

  [Regression Potential]

   * This change could possibly solve other issues as well (regarding
  different timezone changes around the world).

   * I only have 12.04 system so I checked the packages on my system and
  nothing is broken AFAICT.

   * Please notice tzdata and tzdata-java are dependent of one another
  but besides that they have no other dependencies.

  [Other Info]
   
   * Anything else you think is useful to include
   * Anticipate questions from users, SRU, +1 maintenance, security teams and the Technical Board
   * and address these questions in advance

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