Issued:

2012-03-23

Updated:

2012-03-23

RHEA-2012:0412 - tzdata enhancement update

Synopsis

tzdata enhancement update

Type/Severity

Product Enhancement Advisory

Topic

An updated tzdata package that brings Daylight Saving Time observations in four locales up-to-date is now available.

Description

The tzdata package contains data files with rules for various time zones around the world.

This updated package adds the following time-zone changes to the zone info database:

• On 2012-03-15, Morocco announced it will switch to daylight savings time (DST) on the last Sunday in April (29th April) and not the 25th of March. The earlier date was announced as the daylight savings switch date on 2012-03-09. The change was made "after discussion of proposals to consider the demands of schooling", according to Mustapha El Khalfi, the Morocco Minister of Communications. The switch back to standard Moroccan time will still occur at 03:00 on the last Sunday in September, 2012-09-30. This update reflects the later switching date announced on 2012-03-15. (BZ#802460, BZ#802541, BZ#802542, BZ#802543)

Note: the 2012-03-09 announcement also noted Morocco DST will run to September 30, 2012 "except the month of Ramadan". Relative to the Gregorian calendar, Ramadan runs from 2012-07-20 to 2012-08-18 this year. Specific times for this temporary switching to Morocco standard time and then back to Morocco DST were not available as of this errata's publication, however. Consequently this mooted exception is not yet included in the tzdata package.

• Armenia announced it will abolish local daylight savings time observance. This update reflects this: the Armenian time-zone will not advance an hour on 2012-03-24 as was previously set. (BZ#802460, BZ#802541, BZ#802542, BZ#802543)

• The Falkland Islands announced it will remain on Falklands Summer Time for the rest of 2012 and will likely remain so for future years. This update assumes a permanent summer time for the Falkland Islands until advised differently. (BZ#802460, BZ#802541, BZ#802542, BZ#802543)

• Cuba has delayed the 2012 DST switch by three weeks. Originally set to switch at 01:00 2012-03-11, Cuba will now switch to local DST at 01:00 2012-04-01. The switch back to standard time remains unchanged at 2012-11-13. This update incorporates the delayed DST switch for Cuba. (BZ#802460, BZ#802541, BZ#802542, BZ#802543)

Note: other changes noted in the bug reports referenced above (for example, the changes to Chile's DST observance for 2012 and 2013) were previously incorporated into the tzdata package.

All users, especially those in the locale affected by these time changes, and users interacting with people or systems in the affected locale, are advised to upgrade to this updated package, which adds these enhancements.

Solution

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at This content is not included.https://access.redhat.com/kb/docs/DOC-11259

Affected Products

Updated Packages

• tzdata-2012b-3.el5.x86_64.rpm
• tzdata-2012b-3.el5.s390x.rpm
• tzdata-2012b-3.el4.src.rpm
• tzdata-2012b-3.el5.src.rpm
• tzdata-java-2012b-3.el5.x86_64.rpm
• tzdata-2012b-3.el4.noarch.rpm
• tzdata-2012b-3.el5.ppc.rpm
• tzdata-2012b-3.el5.ia64.rpm
• tzdata-2012b-3.el5.i386.rpm
• tzdata-2012b-3.el6.noarch.rpm
• tzdata-java-2012b-3.el6.noarch.rpm
• tzdata-java-2012b-3.el5.i386.rpm
• tzdata-2012b-3.el6.src.rpm

Fixes

• This content is not included.BZ - 802460
• This content is not included.BZ - 802541
• This content is not included.BZ - 802542
• This content is not included.BZ - 802543

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.