Search notes:

Time zone

A geographical region that uses the same time is referred to as a time zone.
Each time zone is epxressed as a positive or negative offset from the UTC.

Windows

In Windows, the time zone can be set with
c:\> start ms-settings:dateandtime
On the command line (cmd.exe, PowerShell), the currently active time zone can be queried like so:
C:\> systeminfo | findstr /c:"Time Zone"
Even simpler, imho, in PowerShell:
PS C:\> get-timeZone

Id                         : W. Europe Standard Time
DisplayName                : (UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna
StandardName               : W. Europe Standard Time
DaylightName               : W. Europe Daylight Time
BaseUtcOffset              : 01:00:00
SupportsDaylightSavingTime : True
See also

Timezones

The following simple PowerShell pipeline can be used to format the output of tzutil.exe /l to display the time zones in a tabular outout:
$rowNum = 0

tzutil /l | foreach-object {

   $line = $_

   switch ($rowNum++ % 3) {
      0 {  $T = $line             }
      1 {  $U = $line             }
      2 { '{0,-65} {1}' -f $T, $U }
   }
}
(UTC-12:00) International Date Line West Dateline Standard Time
(UTC-11:00) Coordinated Universal Time-11 UTC-11
(UTC-10:00) Aleutian Islands Aleutian Standard Time
(UTC-10:00) Hawaii Hawaiian Standard Time
(UTC-09:30) Marquesas Islands Marquesas Standard Time
(UTC-09:00) Alaska Alaskan Standard Time
(UTC-09:00) Coordinated Universal Time-09 UTC-09
(UTC-08:00) Baja California Pacific Standard Time (Mexico)
(UTC-08:00) Coordinated Universal Time-08 UTC-08
(UTC-08:00) Pacific Time (US & Canada) Pacific Standard Time
(UTC-07:00) Arizona US Mountain Standard Time
(UTC-07:00) Chihuahua, La Paz, Mazatlan Mountain Standard Time (Mexico)
(UTC-07:00) Mountain Time (US & Canada) Mountain Standard Time
(UTC-06:00) Central America Central America Standard Time
(UTC-06:00) Central Time (US & Canada) Central Standard Time
(UTC-06:00) Easter Island Easter Island Standard Time
(UTC-06:00) Guadalajara, Mexico City, Monterrey Central Standard Time (Mexico)
(UTC-06:00) Saskatchewan Canada Central Standard Time
(UTC-05:00) Bogota, Lima, Quito, Rio Branco SA Pacific Standard Time
(UTC-05:00) Chetumal Eastern Standard Time (Mexico)
(UTC-05:00) Eastern Time (US & Canada) Eastern Standard Time
(UTC-05:00) Haiti Haiti Standard Time
(UTC-05:00) Havana Cuba Standard Time
(UTC-05:00) Indiana (East) US Eastern Standard Time
(UTC-05:00) Turks and Caicos Turks And Caicos Standard Time
(UTC-04:00) Asuncion Paraguay Standard Time
(UTC-04:00) Atlantic Time (Canada) Atlantic Standard Time
(UTC-04:00) Caracas Venezuela Standard Time
(UTC-04:00) Cuiaba Central Brazilian Standard Time
(UTC-04:00) Georgetown, La Paz, Manaus, San Juan SA Western Standard Time
(UTC-04:00) Santiago Pacific SA Standard Time
(UTC-03:30) Newfoundland Newfoundland Standard Time
(UTC-03:00) Araguaina Tocantins Standard Time
(UTC-03:00) Brasilia E. South America Standard Time
(UTC-03:00) Cayenne, Fortaleza SA Eastern Standard Time
(UTC-03:00) City of Buenos Aires Argentina Standard Time
(UTC-03:00) Greenland Greenland Standard Time
(UTC-03:00) Montevideo Montevideo Standard Time
(UTC-03:00) Punta Arenas Magallanes Standard Time
(UTC-03:00) Saint Pierre and Miquelon Saint Pierre Standard Time
(UTC-03:00) Salvador Bahia Standard Time
(UTC-02:00) Coordinated Universal Time-02 UTC-02
(UTC-01:00) Azores Azores Standard Time
(UTC-01:00) Cabo Verde Is. Cape Verde Standard Time
(UTC) Coordinated Universal Time UTC
(UTC+00:00) Dublin, Edinburgh, Lisbon, London GMT Standard Time
(UTC+00:00) Monrovia, Reykjavik Greenwich Standard Time
(UTC+00:00) Sao Tome Sao Tome Standard Time
(UTC+01:00) Casablanca Morocco Standard Time
(UTC+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna W. Europe Standard Time
(UTC+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague Central Europe Standard Time
(UTC+01:00) Brussels, Copenhagen, Madrid, Paris Romance Standard Time
(UTC+01:00) Sarajevo, Skopje, Warsaw, Zagreb Central European Standard Time
(UTC+01:00) West Central Africa W. Central Africa Standard Time
(UTC+02:00) Amman Jordan Standard Time
(UTC+02:00) Athens, Bucharest GTB Standard Time
(UTC+02:00) Beirut Middle East Standard Time
(UTC+02:00) Cairo Egypt Standard Time
(UTC+02:00) Chisinau E. Europe Standard Time
(UTC+02:00) Damascus Syria Standard Time
(UTC+02:00) Gaza, Hebron West Bank Standard Time
(UTC+02:00) Harare, Pretoria South Africa Standard Time
(UTC+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius FLE Standard Time
(UTC+02:00) Jerusalem Israel Standard Time
(UTC+02:00) Kaliningrad Kaliningrad Standard Time
(UTC+02:00) Khartoum Sudan Standard Time
(UTC+02:00) Tripoli Libya Standard Time
(UTC+02:00) Windhoek Namibia Standard Time
(UTC+03:00) Baghdad Arabic Standard Time
(UTC+03:00) Istanbul Turkey Standard Time
(UTC+03:00) Kuwait, Riyadh Arab Standard Time
(UTC+03:00) Minsk Belarus Standard Time
(UTC+03:00) Moscow, St. Petersburg Russian Standard Time
(UTC+03:00) Nairobi E. Africa Standard Time
(UTC+03:30) Tehran Iran Standard Time
(UTC+04:00) Abu Dhabi, Muscat Arabian Standard Time
(UTC+04:00) Astrakhan, Ulyanovsk Astrakhan Standard Time
(UTC+04:00) Baku Azerbaijan Standard Time
(UTC+04:00) Izhevsk, Samara Russia Time Zone 3
(UTC+04:00) Port Louis Mauritius Standard Time
(UTC+04:00) Saratov Saratov Standard Time
(UTC+04:00) Tbilisi Georgian Standard Time
(UTC+04:00) Volgograd Volgograd Standard Time
(UTC+04:00) Yerevan Caucasus Standard Time
(UTC+04:30) Kabul Afghanistan Standard Time
(UTC+05:00) Ashgabat, Tashkent West Asia Standard Time
(UTC+05:00) Ekaterinburg Ekaterinburg Standard Time
(UTC+05:00) Islamabad, Karachi Pakistan Standard Time
(UTC+05:00) Qyzylorda Qyzylorda Standard Time
(UTC+05:30) Chennai, Kolkata, Mumbai, New Delhi India Standard Time
(UTC+05:30) Sri Jayawardenepura Sri Lanka Standard Time
(UTC+05:45) Kathmandu Nepal Standard Time
(UTC+06:00) Astana Central Asia Standard Time
(UTC+06:00) Dhaka Bangladesh Standard Time
(UTC+06:00) Omsk Omsk Standard Time
(UTC+06:30) Yangon (Rangoon) Myanmar Standard Time
(UTC+07:00) Bangkok, Hanoi, Jakarta SE Asia Standard Time
(UTC+07:00) Barnaul, Gorno-Altaysk Altai Standard Time
(UTC+07:00) Hovd W. Mongolia Standard Time
(UTC+07:00) Krasnoyarsk North Asia Standard Time
(UTC+07:00) Novosibirsk N. Central Asia Standard Time
(UTC+07:00) Tomsk Tomsk Standard Time
(UTC+08:00) Beijing, Chongqing, Hong Kong, Urumqi China Standard Time
(UTC+08:00) Irkutsk North Asia East Standard Time
(UTC+08:00) Kuala Lumpur, Singapore Singapore Standard Time
(UTC+08:00) Perth W. Australia Standard Time
(UTC+08:00) Taipei Taipei Standard Time
(UTC+08:00) Ulaanbaatar Ulaanbaatar Standard Time
(UTC+08:45) Eucla Aus Central W. Standard Time
(UTC+09:00) Chita Transbaikal Standard Time
(UTC+09:00) Osaka, Sapporo, Tokyo Tokyo Standard Time
(UTC+09:00) Pyongyang North Korea Standard Time
(UTC+09:00) Seoul Korea Standard Time
(UTC+09:00) Yakutsk Yakutsk Standard Time
(UTC+09:30) Adelaide Cen. Australia Standard Time
(UTC+09:30) Darwin AUS Central Standard Time
(UTC+10:00) Brisbane E. Australia Standard Time
(UTC+10:00) Canberra, Melbourne, Sydney AUS Eastern Standard Time
(UTC+10:00) Guam, Port Moresby West Pacific Standard Time
(UTC+10:00) Hobart Tasmania Standard Time
(UTC+10:00) Vladivostok Vladivostok Standard Time
(UTC+10:30) Lord Howe Island Lord Howe Standard Time
(UTC+11:00) Bougainville Island Bougainville Standard Time
(UTC+11:00) Chokurdakh Russia Time Zone 10
(UTC+11:00) Magadan Magadan Standard Time
(UTC+11:00) Norfolk Island Norfolk Standard Time
(UTC+11:00) Sakhalin Sakhalin Standard Time
(UTC+11:00) Solomon Is., New Caledonia Central Pacific Standard Time
(UTC+12:00) Anadyr, Petropavlovsk-Kamchatsky Russia Time Zone 11
(UTC+12:00) Auckland, Wellington New Zealand Standard Time
(UTC+12:00) Coordinated Universal Time+12 UTC+12
(UTC+12:00) Fiji Fiji Standard Time
(UTC+12:45) Chatham Islands Chatham Islands Standard Time
(UTC+13:00) Coordinated Universal Time+13 UTC+13
(UTC+13:00) Nuku'alofa Tonga Standard Time
(UTC+13:00) Samoa Samoa Standard Time
(UTC+14:00) Kiritimati Island Line Islands Standard Time

See also

The z and Z format specifiers in the Linux shell command date
struct timezone
tzselect is the shell command to select a time zone.
The .NET class System.TimeZoneInfo
Linux timezone
Time zone related stuff in Oracle

Index