prgmrВ общем, можно ли это программно сделать?Вообще - можно.
Конкретно из Java - не знаю.
У нас на WinXP применяется такой CMD-шник:
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@Echo Off
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time" /v "MUI_Display" /t REG_SZ /d "@tzres.dll,-1830" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time" /v "TZI" /t REG_BINARY /d "4cffffff00000000c4ffffff00000a0000000500020000000000000000000100030001000000000000000000" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time" /v "Std" /t REG_SZ /d "Russian Standard Time" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time" /v "MUI_Std" /t REG_SZ /d "@tzres.dll,-1832" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time" /v "Dlt" /t REG_SZ /d "Russian Standard Time" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time" /v "MUI_Dlt" /t REG_SZ /d "@tzres.dll,-1831" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time" /v "Display" /t REG_SZ /d "(UTC+03:00) Волгоград, Москва, Санкт-Петербург" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "2010" /t REG_BINARY /d "4cffffff00000000c4ffffff00000a0000000500030000000000000000000300000005000200000000000000" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "2011" /t REG_BINARY /d "4cffffff00000000c4ffffff0000010006000100000000000000000000000300000005000200000000000000" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "FirstEntry" /t REG_DWORD /d "2010" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "LastEntry" /t REG_DWORD /d "2015" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "2012" /t REG_BINARY /d "10ffffff00000000c4ffffff0000000000000000000000000000000000000000000000000000000000000000" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "2014" /t REG_BINARY /d "4cffffff00000000c4ffffff00000a0000000500020000000000000000000100030001000000000000000000" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "2015" /t REG_BINARY /d "4cffffff00000000c4ffffff0000000000000000000000000000000000000000000000000000000000000000" /f
Reg.exe add "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\Russian Standard Time\Dynamic DST" /v "2013" /t REG_BINARY /d "10ffffff00000000c4ffffff0000000000000000000000000000000000000000000000000000000000000000" /f
%WinDir%\System32\Control.exe TIMEDATE.CPL,,/Z Russian Standard Time
Годится только для московского часового пояса при условии, что не интересуют другие пояса.
Перед применением скрипт нужно сохранить в 866 кодировке.
Обратите внимание на последнюю строчку.
