This hotfix has been superseded by the following hotfix:
Daylight saving time changes for Mexico, Mongolia, and Iran in Windows
Summary
This article describes a hotfix that updates daylight saving time (DST) settings for Chile and Mexico. Before you install this hotfix, check the Prerequisites section in this article.
Introduction
Chile
Chile announced a DST change on January 28, 2015. For 2015 and going forward, Chile will remain in DST. (No DST change will be observed.) Therefore, the UTC offset for Chile will be updated to UTC-3:00, and the display name of the "Pacific SA Standard Time" time zone will be updated to "(UTC-3:00) Santiago."
Mexico
The Mexican state of Quintana Roo is moving from UTC-6:00 to UTC-5:00. The "Eastern Standard Time (Mexico)" will be created, and this new time zone will have a display name of "(UTC-5:00) Chetumal". This time zone will observe the following DST rules:
- Start date: The first Sunday of April at 02:00 (clocks move forward by one hour)
- End date: The last Sunday of October at 02:00 (clocks move backward by one hour)
| Time zone key name | Display name | DST start | DST end |
|---|---|---|---|
| Eastern Standard Time (Mexico) | (UTC-5:00) Chetumal | First Sunday of April at 02:00:00.000 | Last Sunday of October at 02:00:00.000 |
Hotfix information
This hotfix applies to the following operating systems:
- Windows Server 2012 R2
- Windows 8.1
- Windows RT 8.1
- Windows Server 2012
- Windows 8
- Windows RT
- Windows Server 2008 R2 Service Pack 1 (SP1)
- Windows 7 SP1
- Windows Server 2008 Service Pack 2 (SP2)
- Windows Vista SP2
- Windows Server 2003 SP2
- Windows XP Embedded
How to obtain this hotfix
A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.
If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.
Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.
Prerequisites
To apply this hotfix, you must have the following update rollup or service pack installed for the indicated systems. There are no prerequisites to apply the hotfix to systems that are not listed here.
Windows 8.1 or Windows Server 2012 R2
April 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355)
Windows 7 or Windows Server 2008 R2
Service Pack 1 for Windows 7 or Windows Server 2008 R2
Windows Vista or Windows Server 2008
Service Pack 2 for Windows Vista or Windows Server 2008
Windows Server 2003
Service Pack 2 for Windows Server 2003
Registry information
To use the hotfix in this package, you do not have to make any changes to the registry.
Restart requirement
You may have to restart the computer after you apply this hotfix.
Hotfix replacement information
This hotfix does not replace a previously released hotfix.
File information
The English version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.
Windows 8.1 and Windows Server 2012 R2 file information and notes
Important Windows 8.1 hotfixes and Windows Server 2012 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8.1/Windows Server 2012 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Version Product Milestone Service branch 6.3.960 0.16 xxx Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 RTM GDR The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are not listed.
For all supported x86-based versions of Windows 8.1
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.3.9600.16384 | 2,048 | 22-Aug-2013 | 04:17 | x86 |
For all supported x64-based versions of Windows 8.1 and Windows Server 2012 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.3.9600.16384 | 2,048 | 22-Aug-2013 | 11:45 | x64 |
| Tzres.dll | 6.3.9600.16384 | 2,048 | 22-Aug-2013 | 04:17 | x86 |
For all supported ARM-based versions of Windows 8.1
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.3.9600.16384 | 2,048 | 22-Aug-2013 | 03:16 | Not applicable |
Windows 8 and Windows Server 2012 file information and notes
Important Windows 8 hotfixes and Windows Server 2012 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 8/Windows Server 2012" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Version Product Milestone Service branch 6.2.920 0.16xxx Windows RT, Windows 8, and Windows Server 2012 RTM GDR 6.2.920 0.20xxx Windows RT, Windows 8, and Windows Server 2012 RTM LDR GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are not listed.
For all supported x86-based versions of Windows 8
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.2.9200.16479 | 2,048 | 13-Dec-2012 | 03:59 | x86 |
| Tzres.dll | 6.2.9200.20583 | 2,048 | 13-Dec-2012 | 04:03 | x86 |
For all supported x64-based versions of Windows 8 and Windows Server 2012
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.2.9200.16479 | 2,048 | 13-Dec-2012 | 04:00 | x64 |
| Tzres.dll | 6.2.9200.20583 | 2,048 | 13-Dec-2012 | 04:04 | x64 |
| Tzres.dll | 6.2.9200.16479 | 2,048 | 13-Dec-2012 | 03:59 | x86 |
| Tzres.dll | 6.2.9200.20583 | 2,048 | 13-Dec-2012 | 04:03 | x86 |
For all supported ARM-based versions of Windows 8
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.2.9200.16454 | 2,048 | 09-Nov-2012 | 03:11 | Not applicable |
Windows 7 and Windows Server 2008 R2 file information and notes
Important Windows 7 hotfixes and Windows Server 2008 R2 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows 7/Windows Server 2008 R2" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Version Product Milestone Service branch 6.1.760 1.18xxx Windows 7 and Windows Server 2008 R2 SP1 GDR 6.1.760 1.22xxx Windows 7 and Windows Server 2008 R2 SP1 LDR GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are not listed.
For all supported x86-based versions of Windows 7
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.1.7601.18763 | 2,048 | 14-Feb-2015 | 04:24 | x86 |
| Tzupd.exe | 6.1.7601.18763 | 40,448 | 14-Feb-2015 | 04:25 | x86 |
| Tzres.dll | 6.1.7601.22970 | 2,048 | 14-Feb-2015 | 04:43 | x86 |
| Tzupd.exe | 6.1.7601.22970 | 40,448 | 14-Feb-2015 | 04:45 | x86 |
For all supported x64-based versions of Windows 7 and Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.1.7601.18763 | 2,048 | 14-Feb-2015 | 04:41 | x64 |
| Tzupd.exe | 6.1.7601.18763 | 49,664 | 14-Feb-2015 | 04:42 | x64 |
| Tzres.dll | 6.1.7601.22970 | 2,048 | 14-Feb-2015 | 05:05 | x64 |
| Tzupd.exe | 6.1.7601.22970 | 49,664 | 14-Feb-2015 | 05:08 | x64 |
| Tzres.dll | 6.1.7601.18763 | 2,048 | 14-Feb-2015 | 04:24 | x86 |
| Tzres.dll | 6.1.7601.22970 | 2,048 | 14-Feb-2015 | 04:43 | x86 |
For all supported IA-64-based versions of Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.1.7601.18763 | 2,048 | 14-Feb-2015 | 03:41 | IA-64 |
| Tzupd.exe | 6.1.7601.18763 | 78,848 | 14-Feb-2015 | 03:42 | IA-64 |
| Tzres.dll | 6.1.7601.22970 | 2,048 | 14-Feb-2015 | 03:35 | IA-64 |
| Tzupd.exe | 6.1.7601.22970 | 78,848 | 14-Feb-2015 | 03:36 | IA-64 |
| Tzres.dll | 6.1.7601.18763 | 2,048 | 14-Feb-2015 | 04:24 | x86 |
| Tzres.dll | 6.1.7601.22970 | 2,048 | 14-Feb-2015 | 04:43 | x86 |
Windows Vista and Windows Server 2008 file information and notes
Important Windows Vista hotfixes and Windows Server 2008 hotfixes are included in the same packages. However, hotfixes on the Hotfix Request page are listed under both operating systems. To request the hotfix package that applies to one or both operating systems, select the hotfix that is listed under "Windows Vista/Windows Server 2008" on the page. Always refer to the "Applies To" section in articles to determine the actual operating system that each hotfix applies to.
The files that apply to a specific product, milestone (RTM, SPn), and service branch (LDR, GDR) can be identified by examining the file version numbers as shown in the following table:
Version Product Milestone Service branch 6.0.600 2.19xxx Windows Vista and Windows Server 2008 SP2 GDR 6.0.600 2.23xxx Windows Vista and Windows Server 2008 SP2 LDR GDR service branches contain only those fixes that are widely released to address widespread, critical issues. LDR service branches contain hotfixes in addition to widely released fixes.
The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are not listed.
For all supported x86-based versions of Windows Vista and Windows Server 2008
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.0.6002.19326 | 2,048 | 23-Feb-2015 | 02:34 | x86 |
| Tzupd.exe | 6.0.6002.19326 | 19,456 | 23-Feb-2015 | 02:34 | x86 |
| Tzres.dll | 6.0.6002.23635 | 2,048 | 23-Feb-2015 | 01:18 | x86 |
| Tzupd.exe | 6.0.6002.23635 | 19,456 | 23-Feb-2015 | 01:18 | x86 |
For all supported x64-based versions of Windows Vista and Windows Server 2008
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.0.6002.19325 | 2,048 | 21-Feb-2015 | 00:32 | x64 |
| Tzupd.exe | 6.0.6002.19325 | 20,992 | 21-Feb-2015 | 00:32 | x64 |
| Tzres.dll | 6.0.6002.23635 | 2,048 | 23-Feb-2015 | 01:36 | x64 |
| Tzupd.exe | 6.0.6002.23635 | 20,992 | 23-Feb-2015 | 01:36 | x64 |
| Tzres.dll | 6.0.6002.19325 | 2,048 | 21-Feb-2015 | 00:22 | x86 |
| Tzupd.exe | 6.0.6002.19325 | 19,456 | 21-Feb-2015 | 00:22 | x86 |
| Tzres.dll | 6.0.6002.23635 | 2,048 | 23-Feb-2015 | 01:18 | x86 |
| Tzupd.exe | 6.0.6002.23635 | 19,456 | 23-Feb-2015 | 01:18 | x86 |
For all supported IA-64-based versions of Windows Server 2008
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.0.6002.19326 | 2,048 | 23-Feb-2015 | 01:21 | IA-64 |
| Tzupd.exe | 6.0.6002.19326 | 37,888 | 23-Feb-2015 | 01:21 | IA-64 |
| Tzres.dll | 6.0.6002.23635 | 2,048 | 23-Feb-2015 | 01:20 | IA-64 |
| Tzupd.exe | 6.0.6002.23635 | 37,888 | 23-Feb-2015 | 01:20 | IA-64 |
| Tzres.dll | 6.0.6002.19326 | 2,048 | 23-Feb-2015 | 02:34 | x86 |
| Tzupd.exe | 6.0.6002.19326 | 19,456 | 23-Feb-2015 | 02:34 | x86 |
| Tzres.dll | 6.0.6002.23635 | 2,048 | 23-Feb-2015 | 01:18 | x86 |
| Tzupd.exe | 6.0.6002.23635 | 19,456 | 23-Feb-2015 | 01:18 | x86 |
Windows Server 2003 file information and note
- The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are not listed.
For all supported x86-based versions of Windows Server 2003
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzchange.dll | 5.2.3790.5555 | 17,408 | 14-Feb-2015 | 02:05 | x86 |
| Tzchange.exe | 5.2.3790.5555 | 46,080 | 14-Feb-2015 | 00:54 | x86 |
| Tzchange.dll | 5.2.3790.5555 | 17,408 | 14-Feb-2015 | 02:05 | x86 |
| Updspapi.dll | 6.3.4.1 | 379,184 | 16-May-2014 | 03:14 | x86 |
For all supported x64-based versions of Windows Server 2003
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzchange.dll | 5.2.3790.5555 | 22,016 | 14-Feb-2015 | 02:14 | x64 |
| Tzchange.exe | 5.2.3790.5555 | 60,928 | 14-Feb-2015 | 02:12 | x64 |
| Wtzchange.exe | 5.2.3790.5555 | 46,080 | 14-Feb-2015 | 02:12 | x86 |
| Tzchange.dll | 5.2.3790.5555 | 22,016 | 14-Feb-2015 | 02:14 | x64 |
| Updspapi.dll | 6.3.4.1 | 462,128 | 14-Feb-2015 | 02:14 | x64 |
For all supported IA-64-based versions of Windows Server 2003
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzchange.dll | 5.2.3790.5555 | 37,888 | 14-Feb-2015 | 02:14 | IA-64 |
| Tzchange.exe | 5.2.3790.5555 | 91,648 | 14-Feb-2015 | 02:10 | IA-64 |
| Wtzchange.exe | 5.2.3790.5555 | 46,080 | 14-Feb-2015 | 02:10 | x86 |
| Tzchange.dll | 5.2.3790.5555 | 37,888 | 14-Feb-2015 | 02:14 | IA-64 |
| Updspapi.dll | 6.3.4.1 | 655,152 | 14-Feb-2015 | 02:14 | IA-64 |