Alterar automaticamente o tempo com base na localização atual

Geralmente, mudo entre dois fusos horários e espero que meu laptop com Windows 7 altere automaticamente a hora do sistema, sendo prejudicado pelo mesmo recurso no meu telefone celular. Sempre presumi que os sistemas operacionais da área de trabalho simplesmente não faziam isso, mas fiquei chocado ontem quando percebi que o OSX no MacBook realmente faz isso!

Alguém conhece algum utilitário que faça isso no Windows, especificamente no Windows 7? Tem que haver algo lá fora?

Eu também estava cansado de mudar o tempo nas minhas viagens e apenas decidi construir o produto.

Portanto, agora existe um software para isso: eu o chamei TimeTraveller e você pode encontrá-lo em http://www.godotandco.com

Fiquei irritado com isso depois de atualizar para o Windows 8.1; Eu esperava que fizesse algo como o mac. Então, passei algumas horas criando meu primeiro script do PowerShell para fazer isso. Até agora, tem funcionado.

Sinta-se livre para baixar e usar (instruções incluídas).

http://pastebin.com/hkQ0c1SE

Não encontrei nenhum SW para fazer isso automaticamente com base no local; portanto, pelo menos para simplificar a tarefa, criei um pequeno arquivo em lotes usando o utilitário de linha de comando tzutil no Windows 7. Para se adaptar, é necessário verificar as nomeações de fuso horário do tzutil (tzutil /eu)

@ECHO OFF
ECHO 1. Greece (UTC+2)
ECHO 2. CET (UTC+1)
CHOICE /C:12 /M "Set Time Zone "
IF ERRORLEVEL 2 GOTO TWO
IF ERRORLEVEL 1 GOTO ONE
:ONE
tzutil /s "GTB Standard Time"
GOTO END
:TWO
tzutil /s "W. Europe Standard Time"
:END

Aqui está um script do PowerShell modificado atualizado do usuário ###, vinculado a pastebin em sua resposta, que funciona.

<#
Change policy to run scripts (from CMD as Admin): powershell -Command "Set-ExecutionPolicy -ExecutionPolicy Unrestricted"


-- Setup task scheduler instructions --
Open the Task Scheduler.
In the Task Scheduler library, create a new task by clicking Create Task in the Actions panel on the right side.
Give the task a name like "Update time zone on network connect" or whatever you choose
On the Triggers tab, click New... and select On an Event from the dropdown box.
Choose the following settings:
    Log: Microsoft-Windows-NetworkProfile/Operational
    Source: NetworkProfile
    Event ID: 10000
Click OK, then go to the Conditions tab.
Check the box for Start only if the following network connection is available and choose the network you want to run the script with
Under the Actions tab, click New... and select Start a program. Enter the location of the script file you want to run, then click OK.
Set any other task settings you want to, then click OK.

Command: powershell -file update_time_zone.ps1
#>


Function getWindowsTZFromUnix ($unixTZName) {
    #Mapping from http://www.unicode.org/cldr/charts/latest/supplemental/zone_tzid.html
    $h = @{"Africa/Abidjan"="Greenwich Standard Time";"Africa/Accra"="Greenwich Standard Time";"Africa/Addis_Ababa"="E. Africa Standard Time";"Africa/Algiers"="W. Central Africa Standard Time";"Africa/Asmera"="E. Africa Standard Time";"Africa/Bamako"="Greenwich Standard Time";"Africa/Bangui"="W. Central Africa Standard Time";"Africa/Banjul"="Greenwich Standard Time";"Africa/Bissau"="Greenwich Standard Time";"Africa/Blantyre"="South Africa Standard Time";"Africa/Brazzaville"="W. Central Africa Standard Time";"Africa/Bujumbura"="South Africa Standard Time";"Africa/Cairo"="Egypt Standard Time";"Africa/Casablanca"="Morocco Standard Time";"Africa/Conakry"="Greenwich Standard Time";"Africa/Dakar"="Greenwich Standard Time";"Africa/Dar_es_Salaam"="E. Africa Standard Time";"Africa/Djibouti"="E. Africa Standard Time";"Africa/Douala"="W. Central Africa Standard Time";"Africa/El_Aaiun"="Morocco Standard Time";"Africa/Freetown"="Greenwich Standard Time";"Africa/Gaborone"="South Africa Standard Time";"Africa/Harare"="South Africa Standard Time";"Africa/Johannesburg"="South Africa Standard Time";"Africa/Juba"="E. Africa Standard Time";"Africa/Kampala"="E. Africa Standard Time";"Africa/Khartoum"="E. Africa Standard Time";"Africa/Kigali"="South Africa Standard Time";"Africa/Kinshasa"="W. Central Africa Standard Time";"Africa/Lagos"="W. Central Africa Standard Time";"Africa/Libreville"="W. Central Africa Standard Time";"Africa/Lome"="Greenwich Standard Time";"Africa/Luanda"="W. Central Africa Standard Time";"Africa/Lubumbashi"="South Africa Standard Time";"Africa/Lusaka"="South Africa Standard Time";"Africa/Malabo"="W. Central Africa Standard Time";"Africa/Maputo"="South Africa Standard Time";"Africa/Maseru"="South Africa Standard Time";"Africa/Mbabane"="South Africa Standard Time";"Africa/Mogadishu"="E. Africa Standard Time";"Africa/Monrovia"="Greenwich Standard Time";"Africa/Nairobi"="E. Africa Standard Time";"Africa/Ndjamena"="W. Central Africa Standard Time";"Africa/Niamey"="W. Central Africa Standard Time";"Africa/Nouakchott"="Greenwich Standard Time";"Africa/Ouagadougou"="Greenwich Standard Time";"Africa/Porto-Novo"="W. Central Africa Standard Time";"Africa/Sao_Tome"="Greenwich Standard Time";"Africa/Tripoli"="Libya Standard Time";"Africa/Tunis"="W. Central Africa Standard Time";"Africa/Windhoek"="Namibia Standard Time";"America/Anchorage"="Alaskan Standard Time";"America/Anchorage America/Juneau America/Nome America/Sitka America/Yakutat"="Alaskan Standard Time";"America/Anguilla"="SA Western Standard Time";"America/Antigua"="SA Western Standard Time";"America/Aruba"="SA Western Standard Time";"America/Asuncion"="Paraguay Standard Time";"America/Bahia"="Bahia Standard Time";"America/Barbados"="SA Western Standard Time";"America/Belize"="Central America Standard Time";"America/Blanc-Sablon"="SA Western Standard Time";"America/Bogota"="SA Pacific Standard Time";"America/Buenos_Aires"="Argentina Standard Time";"America/Buenos_Aires America/Argentina/La_Rioja America/Argentina/Rio_Gallegos America/Argentina/Salta America/Argentina/San_Juan America/Argentina/San_Luis America/Argentina/Tucuman America/Argentina/Ushuaia America/Catamarca America/Cordoba America/Jujuy America/Mendoza"="Argentina Standard Time";"America/Caracas"="Venezuela Standard Time";"America/Cayenne"="SA Eastern Standard Time";"America/Cayman"="SA Pacific Standard Time";"America/Chicago"="Central Standard Time";"America/Chicago America/Indiana/Knox America/Indiana/Tell_City America/Menominee America/North_Dakota/Beulah America/North_Dakota/Center America/North_Dakota/New_Salem"="Central Standard Time";"America/Chihuahua"="Mountain Standard Time (Mexico)";"America/Chihuahua America/Mazatlan"="Mountain Standard Time (Mexico)";"America/Coral_Harbour"="SA Pacific Standard Time";"America/Costa_Rica"="Central America Standard Time";"America/Cuiaba"="Central Brazilian Standard Time";"America/Cuiaba America/Campo_Grande"="Central Brazilian Standard Time";"America/Curacao"="SA Western Standard Time";"America/Danmarkshavn"="UTC";"America/Dawson_Creek America/Creston"="US Mountain Standard Time";"America/Denver"="Mountain Standard Time";"America/Denver America/Boise America/Shiprock"="Mountain Standard Time";"America/Dominica"="SA Western Standard Time";"America/Edmonton America/Cambridge_Bay America/Inuvik America/Yellowknife"="Mountain Standard Time";"America/El_Salvador"="Central America Standard Time";"America/Fortaleza America/Araguaina America/Belem America/Maceio America/Recife America/Santarem"="SA Eastern Standard Time";"America/Godthab"="Greenland Standard Time";"America/Grand_Turk"="Eastern Standard Time";"America/Grenada"="SA Western Standard Time";"America/Guadeloupe"="SA Western Standard Time";"America/Guatemala"="Central America Standard Time";"America/Guayaquil"="SA Pacific Standard Time";"America/Guyana"="SA Western Standard Time";"America/Halifax"="Atlantic Standard Time";"America/Halifax America/Glace_Bay America/Goose_Bay America/Moncton"="Atlantic Standard Time";"America/Havana"="Eastern Standard Time";"America/Hermosillo"="US Mountain Standard Time";"America/Indianapolis"="US Eastern Standard Time";"America/Indianapolis America/Indiana/Marengo America/Indiana/Vevay"="US Eastern Standard Time";"America/Jamaica"="SA Pacific Standard Time";"America/Kralendijk"="SA Western Standard Time";"America/La_Paz"="SA Western Standard Time";"America/Lima"="SA Pacific Standard Time";"America/Los_Angeles"="Pacific Standard Time";"America/Lower_Princes"="SA Western Standard Time";"America/Managua"="Central America Standard Time";"America/Manaus America/Boa_Vista America/Porto_Velho"="SA Western Standard Time";"America/Marigot"="SA Western Standard Time";"America/Martinique"="SA Western Standard Time";"America/Matamoros"="Central Standard Time";"America/Mexico_City"="Central Standard Time (Mexico)";"America/Mexico_City America/Bahia_Banderas America/Cancun America/Merida America/Monterrey"="Central Standard Time (Mexico)";"America/Montevideo"="Montevideo Standard Time";"America/Montserrat"="SA Western Standard Time";"America/Nassau"="Eastern Standard Time";"America/New_York"="Eastern Standard Time";"America/New_York America/Detroit America/Indiana/Petersburg America/Indiana/Vincennes America/Indiana/Winamac America/Kentucky/Monticello America/Louisville"="Eastern Standard Time";"America/Noronha"="UTC-02";"America/Ojinaga"="Mountain Standard Time";"America/Panama"="SA Pacific Standard Time";"America/Paramaribo"="SA Eastern Standard Time";"America/Phoenix"="US Mountain Standard Time";"America/Port-au-Prince"="Eastern Standard Time";"America/Port_of_Spain"="SA Western Standard Time";"America/Puerto_Rico"="SA Western Standard Time";"America/Regina"="Canada Central Standard Time";"America/Regina America/Swift_Current"="Canada Central Standard Time";"America/Rio_Branco America/Eirunepe"="SA Pacific Standard Time";"America/Santa_Isabel"="Pacific Standard Time (Mexico)";"America/Santiago"="Pacific SA Standard Time";"America/Santo_Domingo"="SA Western Standard Time";"America/Sao_Paulo"="E. South America Standard Time";"America/Scoresbysund"="Azores Standard Time";"America/St_Barthelemy"="SA Western Standard Time";"America/St_Johns"="Newfoundland Standard Time";"America/St_Kitts"="SA Western Standard Time";"America/St_Lucia"="SA Western Standard Time";"America/St_Thomas"="SA Western Standard Time";"America/St_Vincent"="SA Western Standard Time";"America/Tegucigalpa"="Central America Standard Time";"America/Thule"="Atlantic Standard Time";"America/Tijuana"="Pacific Standard Time";"America/Toronto America/Iqaluit America/Montreal America/Nipigon America/Pangnirtung America/Thunder_Bay"="Eastern Standard Time";"America/Tortola"="SA Western Standard Time";"America/Vancouver America/Dawson America/Whitehorse"="Pacific Standard Time";"America/Winnipeg America/Rainy_River America/Rankin_Inlet America/Resolute"="Central Standard Time";"Antarctica/Casey"="W. Australia Standard Time";"Antarctica/Davis"="SE Asia Standard Time";"Antarctica/DumontDUrville"="West Pacific Standard Time";"Antarctica/Macquarie"="Central Pacific Standard Time";"Antarctica/Mawson"="West Asia Standard Time";"Antarctica/McMurdo"="New Zealand Standard Time";"Antarctica/Palmer"="Pacific SA Standard Time";"Antarctica/Rothera"="SA Eastern Standard Time";"Antarctica/Syowa"="E. Africa Standard Time";"Antarctica/Vostok"="Central Asia Standard Time";"Arctic/Longyearbyen"="W. Europe Standard Time";"Asia/Aden"="Arab Standard Time";"Asia/Almaty"="Central Asia Standard Time";"Asia/Almaty Asia/Qyzylorda"="Central Asia Standard Time";"Asia/Amman"="Jordan Standard Time";"Asia/Ashgabat"="West Asia Standard Time";"Asia/Baghdad"="Arabic Standard Time";"Asia/Bahrain"="Arab Standard Time";"Asia/Baku"="Azerbaijan Standard Time";"Asia/Bangkok"="SE Asia Standard Time";"Asia/Beirut"="Middle East Standard Time";"Asia/Bishkek"="Central Asia Standard Time";"Asia/Brunei"="Singapore Standard Time";"Asia/Calcutta"="India Standard Time";"Asia/Colombo"="Sri Lanka Standard Time";"Asia/Damascus"="Syria Standard Time";"Asia/Dhaka"="Bangladesh Standard Time";"Asia/Dili"="Tokyo Standard Time";"Asia/Dubai"="Arabian Standard Time";"Asia/Dushanbe"="West Asia Standard Time";"Asia/Hong_Kong"="China Standard Time";"Asia/Hovd"="SE Asia Standard Time";"Asia/Irkutsk"="North Asia East Standard Time";"Asia/Jakarta Asia/Pontianak"="SE Asia Standard Time";"Asia/Jayapura"="Tokyo Standard Time";"Asia/Jerusalem"="Israel Standard Time";"Asia/Kabul"="Afghanistan Standard Time";"Asia/Karachi"="Pakistan Standard Time";"Asia/Katmandu"="Nepal Standard Time";"Asia/Krasnoyarsk"="North Asia Standard Time";"Asia/Kuala_Lumpur Asia/Kuching"="Singapore Standard Time";"Asia/Kuwait"="Arab Standard Time";"Asia/Macau"="China Standard Time";"Asia/Magadan"="Magadan Standard Time";"Asia/Magadan Asia/Anadyr Asia/Kamchatka"="Magadan Standard Time";"Asia/Makassar"="Singapore Standard Time";"Asia/Manila"="Singapore Standard Time";"Asia/Muscat"="Arabian Standard Time";"Asia/Nicosia"="GTB Standard Time";"Asia/Novosibirsk"="N. Central Asia Standard Time";"Asia/Novosibirsk Asia/Novokuznetsk Asia/Omsk"="N. Central Asia Standard Time";"Asia/Oral Asia/Aqtau Asia/Aqtobe"="West Asia Standard Time";"Asia/Phnom_Penh"="SE Asia Standard Time";"Asia/Pyongyang"="Korea Standard Time";"Asia/Qatar"="Arab Standard Time";"Asia/Rangoon"="Myanmar Standard Time";"Asia/Riyadh"="Arab Standard Time";"Asia/Saigon"="SE Asia Standard Time";"Asia/Seoul"="Korea Standard Time";"Asia/Shanghai"="China Standard Time";"Asia/Shanghai Asia/Chongqing Asia/Harbin Asia/Kashgar Asia/Urumqi"="China Standard Time";"Asia/Singapore"="Singapore Standard Time";"Asia/Taipei"="Taipei Standard Time";"Asia/Tashkent"="West Asia Standard Time";"Asia/Tashkent Asia/Samarkand"="West Asia Standard Time";"Asia/Tbilisi"="Georgian Standard Time";"Asia/Tehran"="Iran Standard Time";"Asia/Thimphu"="Bangladesh Standard Time";"Asia/Tokyo"="Tokyo Standard Time";"Asia/Ulaanbaatar"="Ulaanbaatar Standard Time";"Asia/Ulaanbaatar Asia/Choibalsan"="Ulaanbaatar Standard Time";"Asia/Vientiane"="SE Asia Standard Time";"Asia/Vladivostok"="Vladivostok Standard Time";"Asia/Vladivostok Asia/Sakhalin Asia/Ust-Nera"="Vladivostok Standard Time";"Asia/Yakutsk"="Yakutsk Standard Time";"Asia/Yakutsk Asia/Khandyga"="Yakutsk Standard Time";"Asia/Yekaterinburg"="Ekaterinburg Standard Time";"Asia/Yerevan"="Caucasus Standard Time";"Atlantic/Azores"="Azores Standard Time";"Atlantic/Bermuda"="Atlantic Standard Time";"Atlantic/Canary"="GMT Standard Time";"Atlantic/Cape_Verde"="Cape Verde Standard Time";"Atlantic/Faeroe"="GMT Standard Time";"Atlantic/Reykjavik"="Greenwich Standard Time";"Atlantic/South_Georgia"="UTC-02";"Atlantic/Stanley"="SA Eastern Standard Time";"Atlantic/St_Helena"="Greenwich Standard Time";"Australia/Adelaide"="Cen. Australia Standard Time";"Australia/Adelaide Australia/Broken_Hill"="Cen. Australia Standard Time";"Australia/Brisbane"="E. Australia Standard Time";"Australia/Brisbane Australia/Lindeman"="E. Australia Standard Time";"Australia/Darwin"="AUS Central Standard Time";"Australia/Hobart"="Tasmania Standard Time";"Australia/Hobart Australia/Currie"="Tasmania Standard Time";"Australia/Perth"="W. Australia Standard Time";"Australia/Sydney"="AUS Eastern Standard Time";"Australia/Sydney Australia/Melbourne"="AUS Eastern Standard Time";"CST6CDT"="Central Standard Time";"EST5EDT"="Eastern Standard Time";"Etc/GMT"="UTC";"Etc/GMT+1"="Cape Verde Standard Time";"Etc/GMT+10"="Hawaiian Standard Time";"Etc/GMT+11"="UTC-11";"Etc/GMT+12"="Dateline Standard Time";"Etc/GMT+2"="UTC-02";"Etc/GMT+3"="SA Eastern Standard Time";"Etc/GMT+4"="SA Western Standard Time";"Etc/GMT+5"="SA Pacific Standard Time";"Etc/GMT+6"="Central America Standard Time";"Etc/GMT+7"="US Mountain Standard Time";"Etc/GMT-1"="W. Central Africa Standard Time";"Etc/GMT-10"="West Pacific Standard Time";"Etc/GMT-11"="Central Pacific Standard Time";"Etc/GMT-12"="UTC+12";"Etc/GMT-13"="Tonga Standard Time";"Etc/GMT-2"="South Africa Standard Time";"Etc/GMT-3"="E. Africa Standard Time";"Etc/GMT-4"="Arabian Standard Time";"Etc/GMT-5"="West Asia Standard Time";"Etc/GMT-6"="Central Asia Standard Time";"Etc/GMT-7"="SE Asia Standard Time";"Etc/GMT-8"="Singapore Standard Time";"Etc/GMT-9"="Tokyo Standard Time";"Europe/Amsterdam"="W. Europe Standard Time";"Europe/Andorra"="W. Europe Standard Time";"Europe/Athens"="GTB Standard Time";"Europe/Belgrade"="Central Europe Standard Time";"Europe/Berlin"="W. Europe Standard Time";"Europe/Berlin Europe/Busingen"="W. Europe Standard Time";"Europe/Bratislava"="Central Europe Standard Time";"Europe/Brussels"="Romance Standard Time";"Europe/Bucharest"="GTB Standard Time";"Europe/Budapest"="Central Europe Standard Time";"Europe/Chisinau"="GTB Standard Time";"Europe/Copenhagen"="Romance Standard Time";"Europe/Dublin"="GMT Standard Time";"Europe/Gibraltar"="W. Europe Standard Time";"Europe/Guernsey"="GMT Standard Time";"Europe/Helsinki"="FLE Standard Time";"Europe/Isle_of_Man"="GMT Standard Time";"Europe/Istanbul"="Turkey Standard Time";"Europe/Jersey"="GMT Standard Time";"Europe/Kaliningrad"="Kaliningrad Standard Time";"Europe/Kiev"="FLE Standard Time";"Europe/Kiev Europe/Simferopol Europe/Uzhgorod Europe/Zaporozhye"="FLE Standard Time";"Europe/Lisbon Atlantic/Madeira"="GMT Standard Time";"Europe/Ljubljana"="Central Europe Standard Time";"Europe/London"="GMT Standard Time";"Europe/Luxembourg"="W. Europe Standard Time";"Europe/Madrid Africa/Ceuta"="Romance Standard Time";"Europe/Malta"="W. Europe Standard Time";"Europe/Mariehamn"="FLE Standard Time";"Europe/Minsk"="Kaliningrad Standard Time";"Europe/Monaco"="W. Europe Standard Time";"Europe/Moscow"="Russian Standard Time";"Europe/Moscow Europe/Samara Europe/Volgograd"="Russian Standard Time";"Europe/Oslo"="W. Europe Standard Time";"Europe/Paris"="Romance Standard Time";"Europe/Podgorica"="Central Europe Standard Time";"Europe/Prague"="Central Europe Standard Time";"Europe/Riga"="FLE Standard Time";"Europe/Rome"="W. Europe Standard Time";"Europe/San_Marino"="W. Europe Standard Time";"Europe/Sarajevo"="Central European Standard Time";"Europe/Skopje"="Central European Standard Time";"Europe/Sofia"="FLE Standard Time";"Europe/Stockholm"="W. Europe Standard Time";"Europe/Tallinn"="FLE Standard Time";"Europe/Tirane"="Central Europe Standard Time";"Europe/Vaduz"="W. Europe Standard Time";"Europe/Vatican"="W. Europe Standard Time";"Europe/Vienna"="W. Europe Standard Time";"Europe/Vilnius"="FLE Standard Time";"Europe/Warsaw"="Central European Standard Time";"Europe/Zagreb"="Central European Standard Time";"Europe/Zurich"="W. Europe Standard Time";"Indian/Antananarivo"="E. Africa Standard Time";"Indian/Chagos"="Central Asia Standard Time";"Indian/Christmas"="SE Asia Standard Time";"Indian/Cocos"="Myanmar Standard Time";"Indian/Comoro"="E. Africa Standard Time";"Indian/Kerguelen"="West Asia Standard Time";"Indian/Mahe"="Mauritius Standard Time";"Indian/Maldives"="West Asia Standard Time";"Indian/Mauritius"="Mauritius Standard Time";"Indian/Mayotte"="E. Africa Standard Time";"Indian/Reunion"="Mauritius Standard Time";"MST7MDT"="Mountain Standard Time";"Pacific/Apia"="Samoa Standard Time";"Pacific/Auckland"="New Zealand Standard Time";"Pacific/Auckland Antarctica/South_Pole"="New Zealand Standard Time";"Pacific/Efate"="Central Pacific Standard Time";"Pacific/Enderbury"="Tonga Standard Time";"Pacific/Fakaofo"="Tonga Standard Time";"Pacific/Fiji"="Fiji Standard Time";"Pacific/Funafuti"="UTC+12";"Pacific/Galapagos"="Central America Standard Time";"Pacific/Guadalcanal"="Central Pacific Standard Time";"Pacific/Guam"="West Pacific Standard Time";"Pacific/Honolulu"="Hawaiian Standard Time";"Pacific/Johnston"="Hawaiian Standard Time";"Pacific/Majuro Pacific/Kwajalein"="UTC+12";"Pacific/Midway"="UTC-11";"Pacific/Nauru"="UTC+12";"Pacific/Niue"="UTC-11";"Pacific/Noumea"="Central Pacific Standard Time";"Pacific/Pago_Pago"="UTC-11";"Pacific/Palau"="Tokyo Standard Time";"Pacific/Ponape Pacific/Kosrae"="Central Pacific Standard Time";"Pacific/Port_Moresby"="West Pacific Standard Time";"Pacific/Rarotonga"="Hawaiian Standard Time";"Pacific/Saipan"="West Pacific Standard Time";"Pacific/Tahiti"="Hawaiian Standard Time";"Pacific/Tarawa"="UTC+12";"Pacific/Tongatapu"="Tonga Standard Time";"Pacific/Truk"="West Pacific Standard Time";"Pacific/Wake"="UTC+12";"Pacific/Wallis"="UTC+12";"PST8PDT"="Pacific Standard Time"}
    return $h.Get_Item($unixTZName)
}

$j = Invoke-WebRequest -Uri http://freegeoip.net/json/ | ConvertFrom-Json

#Debug
Write-Host ($j | Format-Table | Out-String)
#Write-Host "http://api.timezonedb.com/?lat=$($j.lat)&lng=$($j.lng)&format=json&key=$($timezonedbAPIkey)"
#Write-Host ($t | Format-Table | Out-String)
Write-Host "$(getWindowsTZFromUnix($j.time_zone))"


#Determine if time zones are different
if((tzutil /g) -eq (getWindowsTZFromUnix($j.time_zone))) {
    Write-Host "Not updating, time zone unchanged."
    Exit
}

Write-Host "Previous TZ: $(tzutil /g)"
tzutil /s ""$(getWindowsTZFromUnix($j.time_zone))""
Write-Host "TZ now set to: $(tzutil /g)"

Se você estiver em uma rede corporativa, isso terá ainda mais problemas. A menos que o sistema possua um chip GPS embutido pelo qual possa obter sua localização e fuso horário preciso, ele determinará sua localização através de IP público e geolocalização de IP. Em uma rede corporativa, isso sempre será determinado pelo controlador de domínio, que geralmente está em um local estático geograficamente.

Se o seu sistema não estiver em um domínio, depender do IP público e da geolocalização ainda será problemático se você estiver próximo ao limite de um fuso horário, pois nunca saberá se o seu IP está sendo entregue por um servidor na linha.

Pode ser mais fácil escrever um pouco de código que é executado na bandeja do sistema e permitir que você selecione o fuso horário apropriado e atualize o relógio do sistema de acordo.

A Microsoft possui uma ferramenta de fuso horário que permite definir e exibir vários fusos horários. Não verifiquei se é fácil alternar entre os favoritos como sua zona atual, mas pode ser um passo na direção certa.

http://www.microsoft.com/downloads/en/details.aspx?FamilyID=bff59fcf-3148-40b8-a286-fe7274f6e4d8

você precisará fazer um soft para isso, pois não conhece outra maneira de fazer isso funcionar no Windows ( pois a configuração do NTP não será afetada pelas alterações de fuso horário ) e você pode tentar o Atomic Clock Sync .