2002 Mexico City time zone update for daylight saving time (320034)
The information in this article applies to:
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Professional
- Microsoft Windows 2000 Datacenter Server
- Microsoft Windows XP Home Edition
- Microsoft Windows XP Professional
- Microsoft Windows XP 64-Bit Edition
- Microsoft Windows NT Server 4.0
- Microsoft Windows NT Workstation 4.0
- Microsoft Windows Millennium Edition
- Microsoft Windows 98 Second Edition
- Microsoft Windows 98
- Microsoft Windows 95
- Microsoft Windows Server 2003, Datacenter Edition
- Microsoft Windows Server 2003, Enterprise Edition
- Microsoft Windows Server 2003, Standard Edition
- Microsoft Windows Server 2003, Web Edition
- Microsoft Windows Server 2003, 64-Bit Datacenter Edition
- Microsoft Windows Server 2003, 64-Bit Enterprise Edition
This article was previously published under Q320034 SUMMARY The Mexico City time zone is being modified in 2002 to change
the way that daylight saving time is implemented. The 2001 implementation is as
follows:
- Daylight saving time begins at 2:00 A.M. on the first
Sunday of May.
- Daylight saving time ends at 2:00 A.M. on the last Sunday
of September.
The 2002 implementation is as follows:
- Daylight saving time begins at 2:00 A.M. on the first
Sunday of April.
- Daylight saving time ends at 2:00 A.M. on the last Sunday
of October.
This article describes methods that you can use to modify the
default behavior of this time zone in Microsoft Windows to reflect this change.
MORE INFORMATION You can use several methods to modify the default behavior
of a time zone in Windows. For example, you can modify the behavior manually,
or you can run a command in an unattended rollout. Modify the time zone manually To modify the time zone manually, use one of the following
methods:
- Use the Tzedit.exe utility to adjust the start and the end
dates for daylight saving time in the time zone. You can obtain the Tzedit.exe
utility from any Microsoft Windows Resource Kit.
For more information about how to use
Tzedit.exe, click the following article number to view the article in the Microsoft Knowledge Base:
158195
Time Zone Editor Available on OEM Service Release 2
CD-ROM
- Create an .inf file to modify the time zone. After you
create the .inf file, right-click the file, and then click Install. Sample .inf file entries are listed at the end of this
article.
Use an automated deployment To deploy new time zone settings automatically, create an .inf
file to modify the time zone, and then use the Rundll32.exe utility to
implement the .inf file. The following command is an example of the rundll32 command (where
path\ file_name is the
location of the .inf file): rundll32 setupapi,InstallHinfSection DefaultInstall 128 path\file_name Sample .inf file entriesWindows XP This is sample .inf file text for Windows XP:
[Version]
Signature = "$Windows NT$"
[DefaultInstall]
AddReg = AddReg
[AddReg]
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Display",0x00000002,"(GMT-06:00) Guadalajara, Mexico City, Monterrey"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Dlt",0x00000002,"Mexico Daylight Time"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Std",0x00000002,"Mexico Standard Time"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","MapID",0x00000002,"-1,85"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Index",0x00010001,30
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","TZI",0x00030001,68,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0A,00,00,00,05,00,02,00,00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time 2","Display",0x00000002,"(GMT-07:00) Chihuahua, La Paz, Mazatlan"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time 2","Dlt",0x00000002,"Mexico Daylight Time"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time 2","Std",0x00000002,"Mexico Standard Time 2"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time 2","MapID",0x00000002,"34,35"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time 2","Index",0x00010001,13
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time 2","TZI",0x00030001,A4,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0A,00,00,00,05,00,02,00,00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
NOTE: If the computers are already at the time zone that is mentioned
earlier, you must also add the following lines at the end of the script so that
the changes of this time zone take effect. Append this text in the sample .inf
file text for Windows NT, Windows 2000, and Windows XP (Guadalajara, Mexico
City, Monterrey only).
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","ActiveTimeBias",0x00010001,300
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","Bias",0x00010001,360
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightBias",0x00010001,0xffffffc4
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightName",0x00000002,"Mexico Daylight Time"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightStart",0x00030001,00,00,04,00,01,00,02,00,00,00,00,00,00,00,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardBias",0x00010001,0
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardName",0x00000002,"Mexico Standard Time"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardStart",0x00030001,00,00,0a,00,05,00,02,00,00,00,00,00,00,00,00,00
Append the following text in the sample .inf file
text for Windows XP (Chihuahua, La Paz, Mazatlan only):
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","ActiveTimeBias",0x00010001,360
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","Bias",0x00010001,420
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightBias",0x00010001,0xffffffc4
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightName",0x00000002,"Mexico Daylight Time"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightStart",0x00030001,00,00,04,00,01,00,02,00,00,00,00,00,00,00,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardBias",0x00010001,0
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardName",0x00000002,"Mexico Standard Time 2"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardStart",0x00030001,00,00,0a,00,05,00,02,00,00,00,00,00,00,00,00,00
Windows 2000 and Windows NT This is sample .inf file text for Windows 2000 and Windows NT:
[Version]
Signature = "$Windows NT$"
[DefaultInstall]
AddReg = AddReg
[AddReg]
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Display",0x00000002,"(GMT-06:00) Mexico City"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Dlt",0x00000002,"Mexico Daylight Time"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Std",0x00000002,"Mexico Standard Time"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","MapID",0x00000002,"-1,85"
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","Index",0x00010001,30
HKLM,"SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Mexico Standard Time","TZI",0x00030001,68,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0A,00,00,00,05,00,02,00,00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
NOTE: If the computers are already at the time zone that is mentioned
earlier, you must also add the following lines at the end of the script so that
the changes of this time zone take effect. Append the following text in the
sample .inf file text for Windows NT and Windows 2000 (Guadalajara, Mexico
City, Monterrey only).
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","ActiveTimeBias",0x00010001,300
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","Bias",0x00010001,360
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightBias",0x00010001,0xffffffc4
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightName",0x00000002,"Mexico Daylight Time"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightStart",0x00030001,00,00,04,00,01,00,02,00,00,00,00,00,00,00,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardBias",0x00010001,0
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardName",0x00000002,"Mexico Standard Time"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardStart",0x00030001,00,00,0a,00,05,00,02,00,00,00,00,00,00,00,00,00
Windows 95, Windows 98, and Windows Millennium Edition This is sample .inf file text for Windows 95, Windows 98, and
Windows Millennium Edition (Me):
[Version]
Signature = "$Chicago$"
[DefaultInstall]
AddReg = AddReg
[AddReg]
HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones\Mexico","Display",0x00000002,"(GMT-06:00) Mexico City"
HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones\Mexico","Dlt",0x00000002,"Mexico Daylight Time"
HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones\Mexico","Std",0x00000002,"Mexico Standard Time"
HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones\Mexico","MapID",0x00000002,"-1,85"
HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones\Mexico","Index",0x00010001,30
HKLM,"SOFTWARE\Microsoft\Windows\CurrentVersion\Time Zones\Mexico","TZI",0x00030001,68,01,00,00,00,00,00,00,c4,ff,ff,ff,00,00,0A,00,00,00,05,00,02,00,00,00,00,00,00,00,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
NOTE If the computers are already at the time zone that is mentioned
earlier, you must also add the following lines at the end of the script so that
the changes of this time zone take effect. Append the following text in the
sample .inf file text for Windows 95, Windows 98, and Windows Millennium
Edition:
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","ActiveTimeBias",0x00030001,68,01,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","Bias",0x00030001,68,01,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightBias",0x00030001,c4,ff,ff,ff
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightFlag",0x00030001,01,00,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightName",0x00000002,"Mexico Daylight Time"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","DaylightStart",0x00030001,00,00,04,00,00,00,01,00,02,00,00,00,00,00,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardBias",0x00030001,00,00,00,00
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardName",0x00000002,"Mexico Standard Time"
HKLM,"SYSTEM\CurrentControlSet\Control\TimeZoneInformation","StandardStart",0x00030001,00,00,0a,00,00,00,05,00,02,00,00,00,00,00,00,00
Modification Type: | Major | Last Reviewed: | 7/21/2005 |
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Keywords: | kbinfo KB320034 |
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