Extensión Horario verano Chile 2010

Debido a la catástrofe del terremoto en nuestro país, el gobierno ha decidido extender el horario de verano, y el cambio se realizará finalmente el sábado 3 de abril de 2010.

Microsoft no ha liberado una actualización para esta situación todavía, pero mientras tanto podemos hacer un cambio en el registro para reflejar este cambio correctamente.

Actualmente el reloj de nuestro windows nos indica que el cambio se realizará el sábado 14 de marzo:


Para realizar el cambio, abriremos un bloc de notas y debemos pegar el siguiente código:





Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Pacific SA Standard Time\Dynamic DST]
"FirstEntry"=dword:000007d7
"LastEntry"=dword:000007d9
"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,00,00,04,00,06,00,01,00,17,00,\
3b,00,3b,00,00,00,00,00,0a,00,06,00,02,00,17,00,3b,00,3b,00,00,00


Luego guardamos este archivo como un archivo de registro con la extensión REG. Por ejemplo, ActualizaTZ.REG

Luego ejecutamos este archivo de registro para que se combine con el registro actual. Nos preguntará si estamos seguros y luego nos mostrará un mensaje de confirmación.

Una vez hecho esto, el cambio está listo y se puede verificar abriendo el reloj de windows. No es necesario reiniciar para ver los cambios.





Este cambio actualiza una entrada del registro que fue modificada por la última actualización de horario para la zona (UTC -04:00) Santiago. Si se trata de un entorno corporativo, puedes crear un script que ejecute el cambio en forma automática en cada máquina mediante políticas de grupo (GPO).


Sistema operativo utilizado en esta prueba: Windows 7 Enterprise x86 English


Según lo que investigué, para las versiónes de Windows anteriores (Windows XP, 2003), el cambio se realiza en forma diferente, y para esos casos es posible ejecutar la herramienta tzedit.exe

Descarga de tzedit.exe para modificación manual del horario en Windows XP y 2003:
http://download.microsoft.com/download/5/8/a/58a208b7-7dc7-4bc7-8357-28e29cdac52f/tzedit.exe

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