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August 2012 cumulative time zone update for Windows operating systems

Article ID: 2732052

Summary

This update supersedes and replaces update 2633952, which was released in December 2011. All additional time zone changes released as hotfixes after update 2633952 are incorporated in this update.

If you have already deployed update 2633952, read the descriptions of the specific time zone changes that are addressed in this article to determine whether you must deploy this update immediately. If systems are not directly affected, you can schedule deployment at the next available opportunity.

We recommend that you deploy the most current Windows cumulative time zone update to guarantee the consistency of the time zone database on all systems.

Important

Before you apply the update that is described in this article, be aware of potential issues that may affect Microsoft Outlook. For more information about these issues, view the article in the Microsoft Knowledge Base:
931667
(http://support.microsoft.com/kb/931667/ )
How to address time zone changes by using the Time Zone Data Update Tool for Microsoft Office Outlook
If you are running Microsoft Exchange Server in an Information Technology (IT) environment, you must take additional measures to guarantee the correct operation of Exchange Server. For more information about the Exchange daylight saving time (DST) update, view the article in the Microsoft Knowledge Base:
941018
(http://support.microsoft.com/kb/941018/ )
How to address daylight saving time by using the Exchange Calendar Update Tool
Cumulative time zone updates contain only data that has changed for a specific region or that was added to maintain parity with other operating system versions. Therefore, if a time zone key is deleted, some original values may not be restored after you apply the cumulative zone update.

We do not recommend that you delete any registry keys that are related to time zones. On a computer that has incomplete time zone keys, first restore the time zone keys from a known good backup. Then, apply the update.

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More information

The update that this article describes changes the time zone data to accommodate daylight saving time (DST) changes in several countries.

The update that this article describes is a cumulative update rollup that includes all previous Windows time zone changes. For more information about how DST changes may affect other Microsoft products, visit the following Microsoft website:

http://support.microsoft.com/gp/cp_dst

(http://support.microsoft.com/gp/cp_dst)

For more information about how daylight saving time changes may affect other Microsoft products, click the following article number to view the article in the Microsoft Knowledge Base:

914387

(http://support.microsoft.com/kb/914387/ )

How to configure daylight saving time for Microsoft Windows operating systems

Please note: These packages are affected by the issue that is described in Microsoft Security Advisory 2749655

(http://technet.microsoft.com/en-us/security/advisory/2749655)

. In this issue, the digital signature on files that are produced and signed by Microsoft expire prematurely, and are therefore no longer available. The latest packages for these DST transitions are now available for download in the following Microsoft Knowledge Base article:

2756822

(http://support.microsoft.com/kb/2756822/ )

October 2012 cumulative time zone update for Windows operating systems

The following changes were made since the previous Windows cumulative time zone update:

E. Europe Standard Time:
The display name for this time zone has been updated to "(UTC+2:00) E. Europe." from "(UTC+2:00) Nicosia."
Azores Standard Time:
Changes the 2013 DST start time to occur at 12:00:00 AM on the last Sunday of March and end time to occur at 01:00:00 AM on the last Sunday of October.
Caucasus/ Armenian Standard Time:
As previously described in the following blog (http://blogs.technet.com/b/dst2007/archive/2012/03/22/armenia-cancels-dst.aspx
(http://blogs.technet.com/b/dst2007/archive/2012/03/22/armenia-cancels-dst.aspx)
) the government of Armenia has cancelled Daylight Saving Time and will stay on permanent “winter time”. That article suggested that users move to a "workaround time" of Russian Standard Time. This Windows update makes the move permanent by removing the DST rule for the time zone “(UTC+4:00) Yerevan”
Pacific SA Standard Time:
As previously announced in Microsoft Knowledge Base article 2681116
(http://support.microsoft.com/kb/2681116)
, Chile has extended the 2012 Daylight Saving Time. The Chilean government has changed the 2012 DST start date to occur on the first Saturday of September 23:59:59.999 and end date to occur on the last Saturday of April at 23:59:59.999.
Morocco Standard Time:
As previously announced in Microsoft Knowledge Base article 2698707
(http://support.microsoft.com/kb/2698707)
, Morocco will switch to daylight saving time from 2012 onwards. The Moroccan government has changed the 2012 DST start date to occur on the last Sunday of April and end date to occur on the last Sunday of September. During the time of Ramadan, DST will be interrupted and from July 20 to August 19, 2012, time will be turned back to standard time. The transitions reflecting the start and end of Ramadan are not included in this KB, and can be installed by using the Fix-It solutions provided in Microsoft Knowledge Base article 2698707
(http://support.microsoft.com/kb/2698707)
.
Samoa History Correction:
Samoa Time zone changes were included in Microsoft Knowledge Base article 2633952 (December 2011 Cumulative time zone update)
(http://support.microsoft.com/kb/2633952)
. As a result of this update, the entire 2011 calendar was updated to (UTC+13). This update reverts the 2011 calendar to (UTC-11) while the 2012 and future calendars will continue to be (UTC+13). The history correction has also been contained in KB 2657025.
Russian History Correction:
Russian Time zone changes were included in Knowledge Base article 2570791 (August 2011 Cumulative time zone update)
(http://support.microsoft.com/kb/2570791)
. As a result of Russia canceling DST and staying on permanent "summer time," the entire 2011 calendar was updated to summer time. This update changes the 2011 calendar to show winter time before March 27, 2011 while DST was still in effect. The history correction has also been contained in KB 2657025.

The time zone changes are summarized in the following table.

Collapse this tableExpand this table

Time zone key name	Display name	New DST start	New DST end	Additional Comments
E. Europe Standard Time	(UTC+02:00) E. Europe	Not applicable	Not applicable	The DST rules did not change, only the display name changed from Nicosia to E.Europe
Azores Standard Time	(UTC-01:00) Azores	Last Sunday of March 00:00:00.000	Last Sunday of October 01:00:00.000	This rule would be applicable from 2013 onwards only. 2012 rule remains unchanged.
Caucasus/ Armenian Standard Time	(UTC+04:00) Yerevan	No DST	No DST	DST has been turned off for this time zone.
Pacific SA Standard Time	(UTC-04:00) Santiago	First Saturday of September 23:59:59.999	Last Saturday of April 23:59:59.999
Morocco Standard Time	(UTC) Casablanca	Last Sunday of April 02:00:00.000	Last Sunday of September 03:00:00.000	Ramadan transitions are undertaken by the Fix-It solutions that are provided in 2698707. (http://support.microsoft.com/kb/2698707)

The following is a complete list of additional display name changes that are implemented in these packages for specific locales.

Collapse this tableExpand this table

Time zone	Applicable Locale	Old Display Name	Updated Display Name	Applicable Platforms
Central America	Spanish	Hora de verano de Centroamérica	Hora de verano, América Central	Vista, Win 7
Central America	Spanish	Hora estándar de Centroamérica	Hora estándar, América Central	Vista, Win 7
Chennai, Kolkata, Mumbai, New Delhi	Bulgarian	(UTC+05:30) Ченай, Калкута, Мумбай, Ню Делхи	(UTC+05:30) Ченай, Колката, Мумбай, Ню Делхи	Vista, Win 7
Chennai, Kolkata, Mumbai, New Delhi	Czech	(UTC+05:30) Bombaj, Čennaj, Kalkata, Nové Dillí	(UTC+05:30) Mumbaí (Bombay), Čennaj, Kolkata (Kalkata), Nové Dillí	Vista, Win 7
Yangon (Rangoon)	Czech	(UTC+06:30) Rangún	(UTC+06:30) Yangon (Rangún)	Vista, Win 7
Samoa Daylight Time Samoa Standard Time	Czech	Ostrovy Samoa (letní čas) Ostrovy Samoa (běžný čas)	Samoa (letní čas) Samoa (běžný čas)	Vista, Win 7
Magadan, Solomon Is., New Caledonia	Dutch	(UTC+11:00) Magadan, Solomon Is., Nieuw-Caledonië;	(UTC+11:00) Magadan, Salomonseilanden, Nieuw-Caledonië	Vista, Win 7
Solomon Is., New Caledonia	Dutch	(UTC+11:00) Solomon Is., Nieuw-Caledonië	(UTC+11:00) Salomonseilanden, Nieuw-Caledonië	Vista, Win 7
Solomon Is., New Caledonia	Dutch	(GMT+11:00) Solomon Is., Nieuw-Caledonië	(GMT+11:00) Salomonseilanden, Nieuw-Caledonië	Win2K, Win 2003, XP
Chennai, Kolkata, Mumbai, New Delhi	Finnish	(UTC+05:30) Chennai, Kalkutta, Mumbai, New Delhi	(UTC+05:30) Chennai, Kolkata (Kalkutta), Mumbai, New Delhi	Vista, Win 7
Almaty, Novosibirsk	Finnish	(UTC+06:00) Alma-Ata, Novosibirsk	(UTC+06:00) Astana, Novosibirsk	Vista, Win 7
Beijing, Chongqing, Hong Kong, Urumqi	Finnish	(UTC+08:00) Peking, Chongqing, Hongkong, Urumqi	(UTC+08:00) Beijing, Chongqing, Hongkong, Urumqi	Vista, Win 7
Magadan, Solomon Is., New Caledonia	French	(UTC+11:00) Magadan, Îles Salomon, Nouvelle Calédonie	(UTC+11:00) Magadan, Îles Salomon, Nouvelle-Calédonie	Vista, Win 7
Solomon Is., New Caledonia	French	(UTC+11:00) Îles Salomon, Nouvelle Calédonie	(UTC+11:00) Îles Salomon, Nouvelle-Calédonie	Vista, Win 7
Beijing, Chongqing, Hong Kong, Urumqi	German	(UTC+08:00) Peking, Chongqing, Hongkong, Urumchi	(UTC+08:00) Peking, Chongqing, Hongkong (SAR), Urumchi	Vista, Win 7
Central Europe Standard Time	German	(GMT+01:00) Belgrado, Bratislava, Budapest, Liubliana, Praga	(GMT+01:00) Belgrad, Bratislava (Pressburg), Budapest, Ljubljana, Prag	Vista, Win7
Chennai, Kolkata, Mumbai, New Delhi	Greek	(UTC+05:30) Μαντράς, Καλκούτα, Βομβάη, Νέο Δελχί	(UTC+05:30) Τσενάι, Κολκάτα, Μουμπάι, Νέο Δελχί	Vista, Win 7
Almaty, Novosibirsk	Greek	(UTC+06:00) Αλμά-Ατά, Νοβοσιμπίρσκ	(UTC+06:00) Αστάνα, Νοβοσιμπίρσκ	Vista, Win 7
Almaty, Novosibirsk	Latvian	(UTC+06:00) Alma-Ata, Novosibirska	(UTC+06:00) Almati, Novosibirska	Vista, Win 7
Samoa Daylight Time	Lithuanian	Samoa vasaros / žiemos laik	Samoa vasaros / žiemos laikas	Vista, Win 7
Samoa Standard Time	Lithuanian	Standartinis Samoa laik	Standartinis Samoa laikas	Vista, Win 7
Magadan, Solomon Is., New Caledonia	Lithuanian	(UTC+11:00) Magadanas, Saliamono salos, Naujoji Kaledonija	(UTC+11:00) Magadanas, Saliamono Salos, Naujoji Kaledonija	Vista, Win 7
Solomon Is., New Caledonia	Lithuanian	(UTC+11:00) Saliamono salos, Naujoji Kaledonija	(UTC+11:00) Saliamono Salos, Naujoji Kaledonija	Vista, Win 7
Azores	Norwegian	(UTC-01:00) Azorene Azorene (sommertid) Azorene (normaltid)	(UTC-01:00) Asorene Asorene (sommertid) Asorene (normaltid)	Vista, Win 7
Beijing, Chongqing, Hong Kong, Urumqi	Norwegian	(UTC+08:00) Peking, Chongqing, Hongkong, Ürümqi	(UTC+08:00) Beijing, Chongqing, Hongkong, Ürümqi	Vista, Win 7
Yangon (Rangoon)	Polish	(UTC+06:30) Rangun	(UTC+06:30) Yangon (Rangun)	Vista, Win 7
Chennai, Kolkata, Mumbai, New Delhi	Portuguese (Portugal)	(UTC+05:30) Chennai, Calcutá, Mumbai, Nova Deli	(UTC+05:30) Chennai, Kolkata (Calcutá), Mumbai, Nova Deli	Vista, Win 7
Fiji	Turkish	Fiji Yaz Saati Fiji Standart Saati (UTC+12:00) Fiji, Marshall Adl. (UTC+12:00) Fiji	Fiji Adaları Yaz Saati Fiji Adaları Standart Saati (UTC+12:00) Fiji Adaları, Marshall Adl. (UTC+12:00) Fiji Adaları	Vista, Win 7
Midway Island, Samoa	Ukrainian	(UTC-11:00) о. Мідуей, Американське Самоа Східна Центральна Європа (літо)	(UTC-11:00) о. Мідуей, Самоа Східна Європа (літо)	Vista, Win 7
E. Europe	Ukrainian	Східна Центральна Європа (зима)	Східна Європа (зима)	Vista, Win 7
Yangon (Rangoon)	Ukrainian	(UTC+06:30) Янґон (Рангун)	(UTC+06:30) Янґон	Vista, Win 7
Kaliningrad, Minsk	Ukrainian	(UTC+06:00) Алмати, Новосибірськ	(UTC+06:00) Астана, Новосибірськ	Vista, Win 7

Registry Key Information

E.Europe

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\E. Europe Standard Time]

"MUI_Display"="@tzres.dll,-1680"

"MUI_Dlt"="@tzres.dll,-331"

"MUI_Std"="@tzres.dll,-332"

"Display"="(UTC+02:00) E. Europe"

"TZI"=hex:88,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,03,00,00,\

00,00,00,00,00,00,00,03,00,00,00,05,00,02,00,00,00,00,00,00,00

Azores

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Azores Standard Time]

"TZI"=hex:3c,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,03,00,00,\

00,00,00,00,00,00,00,03,00,00,00,05,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Azores Standard Time\Dynamic DST]

"FirstEntry"=dword:000007dc

"LastEntry"=dword:000007dd

"2012"=hex:3c,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,03,00,\

00,00,00,00,00,00,00,00,03,00,00,00,05,00,02,00,00,00,00,00,00,00

"2013"=hex:3c,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,01,00,\

00,00,00,00,00,00,00,00,03,00,00,00,05,00,00,00,00,00,00,00,00,00

Armenia (Win 7 and Vista)

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Caucasus Standard Time]

"TZI"=hex:10,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,\

00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Caucasus Standard Time\Dynamic DST]

"FirstEntry"=dword:000007db

"LastEntry"=dword:000007dc

"2011"=hex:10,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,03,00,\

00,00,00,00,00,00,00,00,03,00,00,00,05,00,02,00,00,00,00,00,00,00

"2012"=hex:10,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\

00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

Armenia (Win XP and Win 2k3 and Win 2k)

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Armenian Standard Time]

"TZI"=hex:10,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,\

00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Armenian Standard Time\Dynamic DST]

"FirstEntry"=dword:000007db

"LastEntry"=dword:000007dc

"2011"=hex:10,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,0a,00,00,00,05,00,03,00,\

00,00,00,00,00,00,00,00,03,00,00,00,05,00,02,00,00,00,00,00,00,00

"2012"=hex:10,ff,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\

00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

Morocco

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Morocco Standard Time]

"TZI"=hex:00,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,09,00,00,00,05,00,03,00,00,\

00,00,00,00,00,00,00,04,00,00,00,05,00,02,00,00,00,00,00,00,00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Morocco Standard Time\Dynamic DST]

"FirstEntry"=dword:000007d7

"LastEntry"=dword:000007dc

"2007"=hex:00,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,\

00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

"2008"=hex:00,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,08,00,00,00,05,00,17,00,\

3b,00,3b,00,e7,03,00,00,05,00,06,00,05,00,17,00,3b,00,3b,00,e7,03

"2009"=hex:00,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,08,00,04,00,03,00,17,00,\

3b,00,3b,00,e7,03,00,00,05,00,00,00,05,00,17,00,3b,00,3b,00,e7,03

"2010"=hex:00,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,08,00,06,00,01,00,17,00,\

3b,00,3b,00,e7,03,00,00,05,00,06,00,01,00,17,00,3b,00,3b,00,e7,03

"2011"=hex:00,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,07,00,06,00,05,00,17,00,\

3b,00,3b,00,e7,03,00,00,04,00,06,00,01,00,17,00,3b,00,3b,00,e7,03

"2012"=hex:00,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,09,00,00,00,05,00,03,00,\

00,00,00,00,00,00,00,00,04,00,00,00,05,00,02,00,00,00,00,00,00,00

Chile

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Pacific SA Standard Time]

"TZI"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,04,00,06,00,05,00,17,00,3b,\

00,3b,00,e7,03,00,00,09,00,06,00,01,00,17,00,3b,00,3b,00,e7,03

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Pacific SA Standard Time\Dynamic DST]

"FirstEntry"=dword:000007d7

"LastEntry"=dword:000007dd

"2007"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,02,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2008"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,05,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2009"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,02,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2010"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,04,00,06,00,01,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

"2011"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,05,00,06,00,01,00,17,00,\

3b,00,3b,00,e7,03,00,00,08,00,06,00,03,00,17,00,3b,00,3b,00,e7,03

"2012"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,04,00,06,00,05,00,17,00,\

3b,00,3b,00,e7,03,00,00,09,00,06,00,01,00,17,00,3b,00,3b,00,e7,03

"2013"=hex:f0,00,00,00,00,00,00,00,c4,ff,ff,ff,00,00,03,00,06,00,02,00,17,00,\

3b,00,3b,00,e7,03,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,e7,03

Windows XP

Prerequisites

You must have Windows XP Service Pack 3 (SP3) installed to apply this update. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

322389

(http://support.microsoft.com/kb/322389/ )

How to obtain the latest Windows XP service pack

Update replacement information

Note You can install this cumulative update rollup even after you have installed any of the following previously released updates. This update replaces the following update:

2633952

(http://support.microsoft.com/kb/2633952/ )

December 2011 cumulative time zone update for Microsoft Windows operating systems

Windows Server 2003

Prerequisites

You must have Windows Server 2003 SP2 installed to apply this update. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100

(http://support.microsoft.com/kb/889100/ )

How to obtain the latest service pack for Windows Server 2003

Update replacement information

Note You can install this cumulative update rollup even after you have installed any of the following previously released updates. This update replaces the following update:

2633952

(http://support.microsoft.com/kb/2633952/ )

December 2011 cumulative time zone update for Microsoft Windows operating systems

Windows Vista or Windows Server 2008

Prerequisites

You must have Windows Vista or Windows Server 2008 Service Pack 2 installed to apply this update.

Update replacement information

Note You can install this cumulative update rollup even after you have installed any of the following previously released updates. This update replaces the following update:

2633952

(http://support.microsoft.com/kb/2633952/ )

December 2011 cumulative time zone update for Microsoft Windows operating systems

Windows 7 or Windows Server 2008 R2

Prerequisites

No prerequisites are required to apply this update. The same package installs both on the RTM version as well as the SP1 versions of Windows 7 and Windows Server 2008 R2.Update replacement informationNote: You can install this cumulative update rollup even after you have installed any of the following previously released updates. This update replaces the following update:

2633952

(http://support.microsoft.com/kb/2633952/ )

December 2011 cumulative time zone update for Microsoft Windows operating systems

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