- BZ#921173, BZ#921174, BZ#919628, BZ#921176
- Time zone rules of tzdata have been modified to reflect the following changes:The period of Daylight Saving Time (DST) in Paraguay will end on March 24 instead of April 14.Haiti will use US daylight-saving rules in the year 2013.Morocco does not observe DST during Ramadan. Therefore, Morocco is expected to switch to Western European Time (WET) on July 9 and resume again to Western European Summer Time (WEST) on August 8.Also, the tzdata packages now provide rules for several new time zones: Asia/Khandyga, Asia/Ust-Nera, and Europe/Busingen.
- Recent change to Daylight Saving rules in Paraguay appears to be perpetual. Transition times in years 2014 and later were updated accordingly.
- The Macquarie Island was uninhabited between years 1919 and 1948. This update introduces a new time type with a "zzz" abbreviation, which distinguishes uninhabited regions from the inhabited ones.
- The Macquarie Island belongs to Australia. This updated modifies the /usr/share/zoneinfo/zone.tab file accordingly.
- BZ#980805, BZ#980807, BZ#981019, BZ#981020
- Morocco does not observe DST during Ramadan. Therefore, Morocco is expected to switch to Western European Time (WET) on July 7 and resume again to Western European Summer Time (WEST) on August 10. Also, the period of DST in Israel has been extended until the last Sunday in October from the year 2013 onwards.
- BZ#912521, BZ#916272, BZ#916273, BZ#916274
- The Chilean Government is extending the period of Daylight Saving Time (DST) in the year 2013 until April the 27th. Then, Chile Standard Time (CLT) and Easter Island Standard Time (EAST) will be in effect until September the 7th when switching again to DST. With this update, the rules used for Chile time zones have been adjusted accordingly.