This article describes a hotfix that updates daylight saving time (DST) settings for Mexico, Mongolia, and Iran. This update supersedes KB 3039024. Before you install this hotfix, check the Prerequisites section in this article.
Introduction
Mexico
A new time zone, “Eastern Standard Time (Mexico),” was added in KB 3039024. It was originally set to observe DST from the first Sunday of April through the last Sunday of October. However, according to the latest announcement from the Mexican government, this time zone does not observe DST. Therefore, the previous DST rules for this time zone are removed in this update.
Mongolia
Mongolia will observe DST starting this year. DST for Mongolia starts on the last Saturday of March at 02:00 and ends on the last Saturday of September at 00:00. The following DST rules will be observed.
| Time zone key name | Display name | DST start | DST end |
|---|---|---|---|
| Mongolia Standard Time | (UTC+8:00) Ulaanbaatar | Last Saturday of March at 02:00:00.000 | Last Saturday of September at 00:00:00.000 |
Iran
Iran follows the Persian calendar. This update corrects the DST data for "Iran Standard Time" in Windows for the years 2015 through 2024.
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 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 replaces hotfix 3039024.
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 Windows RT
| 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 1.23xxx 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 | 6.1.7601.18801 | 2,048 | 20-Mar-2015 | 03:04 | x86 |
| Tzupd.exe | 6.1.7601.18801 | 40,448 | 20-Mar-2015 | 03:06 | x86 |
| Tzres.dll | 6.1.7601.23005 | 2,048 | 20-Mar-2015 | 03:33 | x86 |
| Tzupd.exe | 6.1.7601.23005 | 40,448 | 20-Mar-2015 | 03:39 | 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 | 6.1.7601.18801 | 2,048 | 20-Mar-2015 | 03:21 | x64 |
| Tzupd.exe | 6.1.7601.18801 | 49,664 | 20-Mar-2015 | 03:23 | x64 |
| Tzres.dll | 6.1.7601.23005 | 2,048 | 20-Mar-2015 | 03:37 | x64 |
| Tzupd.exe | 6.1.7601.23005 | 49,664 | 20-Mar-2015 | 03:42 | x64 |
| Tzres.dll | 6.1.7601.18801 | 2,048 | 20-Mar-2015 | 03:04 | x86 |
| Tzres.dll | 6.1.7601.23005 | 2,048 | 20-Mar-2015 | 03:33 | x86 |
For all supported IA-64-based versions of Windows Server 2008 R2
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.1.7601.18801 | 2,048 | 20-Mar-2015 | 02:19 | IA-64 |
| Tzupd.exe | 6.1.7601.18801 | 78,848 | 20-Mar-2015 | 02:21 | IA-64 |
| Tzres.dll | 6.1.7601.23005 | 2,048 | 20-Mar-2015 | 02:27 | IA-64 |
| Tzupd.exe | 6.1.7601.23005 | 78,848 | 20-Mar-2015 | 02:29 | IA-64 |
| Tzres.dll | 6.1.7601.18801 | 2,048 | 20-Mar-2015 | 03:04 | x86 |
| Tzres.dll | 6.1.7601.23005 | 2,048 | 20-Mar-2015 | 03:33 | 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 | 6.0.6002.19346 | 2,048 | 20-Mar-2015 | 00:16 | x86 |
| Tzupd.exe | 6.0.6002.19346 | 19,456 | 20-Mar-2015 | 00:16 | x86 |
| Tzres.dll | 6.0.6002.23654 | 2,048 | 19-Mar-2015 | 23:53 | x86 |
| Tzupd.exe | 6.0.6002.23654 | 19,456 | 19-Mar-2015 | 23:53 | 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 | 6.0.6002.19346 | 2,048 | 20-Mar-2015 | 00:22 | x64 |
| Tzupd.exe | 6.0.6002.19346 | 20,992 | 20-Mar-2015 | 00:22 | x64 |
| Tzres.dll | 6.0.6002.23654 | 2,048 | 20-Mar-2015 | 00:16 | x64 |
| Tzupd.exe | 6.0.6002.23654 | 20,992 | 20-Mar-2015 | 00:16 | x64 |
| Tzres.dll | 6.0.6002.19346 | 2,048 | 20-Mar-2015 | 00:16 | x86 |
| Tzupd.exe | 6.0.6002.19346 | 19,456 | 20-Mar-2015 | 00:16 | x86 |
| Tzres.dll | 6.0.6002.23654 | 2,048 | 19-Mar-2015 | 23:53 | x86 |
| Tzupd.exe | 6.0.6002.23654 | 19,456 | 19-Mar-2015 | 23:53 | x86 |
For all supported IA-64-based versions of Windows Server 2008
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzres.dll | 6.0.6002.19346 | 2,048 | 20-Mar-2015 | 00:12 | IA-64 |
| Tzupd.exe | 6.0.6002.19346 | 37,888 | 20-Mar-2015 | 00:12 | IA-64 |
| Tzres.dll | 6.0.6002.23654 | 2,048 | 19-Mar-2015 | 23:57 | IA-64 |
| Tzupd.exe | 6.0.6002.23654 | 37,888 | 19-Mar-2015 | 23:57 | IA-64 |
| Tzres.dll | 6.0.6002.19346 | 2,048 | 20-Mar-2015 | 00:16 | x86 |
| Tzupd.exe | 6.0.6002.19346 | 19,456 | 20-Mar-2015 | 00:16 | x86 |
| Tzres.dll | 6.0.6002.23654 | 2,048 | 19-Mar-2015 | 23:53 | x86 |
| Tzupd.exe | 6.0.6002.23654 | 19,456 | 19-Mar-2015 | 23:53 | 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 | 5.2.3790.5583 | 17,408 | 20-Mar-2015 | 22:13 | x86 |
| Tzchange.exe | 5.2.3790.5583 | 46,080 | 17-Mar-2015 | 05:24 | x86 |
| Tzchange.dll | 5.2.3790.5583 | 17,408 | 20-Mar-2015 | 22:13 | x86 |
For all supported x64-based versions of Windows Server 2003
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzchange.dll | 5.2.3790.5583 | 22,016 | 20-Mar-2015 | 07:23 | x64 |
| Tzchange.exe | 5.2.3790.5583 | 60,928 | 20-Mar-2015 | 07:20 | x64 |
| Wtzchange.exe | 5.2.3790.5583 | 46,080 | 20-Mar-2015 | 07:20 | x86 |
| Tzchange.dll | 5.2.3790.5583 | 22,016 | 20-Mar-2015 | 07:23 | x64 |
For all supported IA-64-based versions of Windows Server 2003
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzchange.dll | 5.2.3790.5583 | 37,888 | 20-Mar-2015 | 07:23 | IA-64 |
| Tzchange.exe | 5.2.3790.5583 | 91,648 | 20-Mar-2015 | 07:19 | IA-64 |
| Wtzchange.exe | 5.2.3790.5583 | 46,080 | 20-Mar-2015 | 07:19 | x86 |
| Tzchange.dll | 5.2.3790.5583 | 37,888 | 20-Mar-2015 | 07:23 | IA-64 |
Windows XP 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 XP
| File name | File version | File size | Date | Time | Platform |
|---|---|---|---|---|---|
| Tzchange.dll | 5.1.2600.6777 | 16,896 | 20-Mar-2015 | 20:23 | x86 |
| Tzchange.exe | 5.1.2600.6777 | 46,080 | 20-Mar-2015 | 01:30 | x86 |
| Tzchange.dll | 5.1.2600.6777 | 16,896 | 20-Mar-2015 | 20:23 | x86 |
References
See the terminology that Microsoft uses to describe software updates.