Index numbers for [GuiUnattended]/TimeZone
The answer file uses a parameter named TimeZone in the [GuiUnattended] section to set the computer's time zone. The value of
this parameter is an "index" which does not correspond to anything else
on earth, as far as I can tell.
The index numbers are documented in (some of) Microsoft's guides to the answer file. You can also find them in your
registry under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones, in the Index value below each time zone key.
For a long time, I could not find these anywhere on the World Wide Web, so I created the table below. Nowadays, Microsoft includes them in the on-line Server 2003 documentation for the [GuiUnattended] section. But I am leaving this page here anyway.
| Index | Time Zone | Display Name |
|---|---|---|
| 000 | Dateline Standard Time (GMT-12:00) | International Date Line West |
| 001 | Samoa Standard Time (GMT-11:00) | Midway Island, Samoa |
| 002 | Hawaiian Standard Time (GMT-10:00) | Hawaii |
| 003 | Alaskan Standard Time (GMT-09:00) | Alaska |
| 004 | Pacific Standard Time (GMT-08:00) | Pacific Time (US and Canada); Tijuana |
| 010 | Mountain Standard Time (GMT-07:00) | Mountain Time (US and Canada) |
| 013 | Mexico Standard Time 2 (GMT-07:00) | Chihuahua, La Paz, Mazatlan |
| 015 | U.S. Mountain Standard Time (GMT-07:00) | Arizona |
| 020 | Central Standard Time (GMT-06:00) | Central Time (US and Canada) |
| 025 | Canada Central Standard Time (GMT-06:00) | Saskatchewan |
| 030 | Mexico Standard Time (GMT-06:00) | Guadalajara, Mexico City, Monterrey |
| 033 | Central America Standard Time (GMT-06:00) | Central America |
| 035 | Eastern Standard Time (GMT-05:00) | Eastern Time (US and Canada) |
| 040 | U.S. Eastern Standard Time (GMT-05:00) | Indiana (East) |
| 045 | S.A. Pacific Standard Time (GMT-05:00) | Bogota, Lima, Quito |
| 050 | Atlantic Standard Time (GMT-04:00) | Atlantic Time (Canada) |
| 055 | S.A. Western Standard Time (GMT-04:00) | Caracas, La Paz |
| 056 | Pacific S.A. Standard Time (GMT-04:00) | Santiago |
| 060 | Newfoundland Standard Time (GMT-03:30) | Newfoundland |
| 065 | E. South America Standard Time (GMT-03:00) | Brasilia |
| 070 | S.A. Eastern Standard Time (GMT-03:00) | Buenos Aires, Georgetown |
| 073 | Greenland Standard Time (GMT-03:00) | Greenland |
| 075 | Mid-Atlantic Standard Time (GMT-02:00) | Mid-Atlantic |
| 080 | Azores Standard Time (GMT-01:00) | Azores |
| 083 | Cape Verde Standard Time (GMT-01:00) | Cape Verde Islands |
| 085 | GMT Standard Time (GMT) | Greenwich Mean Time : Dublin, Edinburgh, Lisbon, London |
| 090 | Greenwich Standard Time (GMT) | Casablanca, Monrovia |
| 095 | Central Europe Standard Time (GMT+01:00) | Belgrade, Bratislava, Budapest, Ljubljana, Prague |
| 100 | Central European Standard Time (GMT+01:00) | Sarajevo, Skopje, Warsaw, Zagreb |
| 105 | Romance Standard Time (GMT+01:00) | Brussels, Copenhagen, Madrid, Paris |
| 110 | W. Europe Standard Time (GMT+01:00) | Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna |
| 113 | W. Central Africa Standard Time (GMT+01:00) | West Central Africa |
| 115 | E. Europe Standard Time (GMT+02:00) | Bucharest |
| 120 | Egypt Standard Time (GMT+02:00) | Cairo |
| 125 | FLE Standard Time (GMT+02:00) | Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius |
| 130 | GTB Standard Time (GMT+02:00) | Athens, Istanbul, Minsk |
| 135 | Israel Standard Time (GMT+02:00) | Jerusalem |
| 140 | South Africa Standard Time (GMT+02:00) | Harare, Pretoria |
| 145 | Russian Standard Time (GMT+03:00) | Moscow, St. Petersburg, Volgograd |
| 150 | Arab Standard Time (GMT+03:00) | Kuwait, Riyadh |
| 155 | E. Africa Standard Time (GMT+03:00) | Nairobi |
| 158 | Arabic Standard Time (GMT+03:00) | Baghdad |
| 160 | Iran Standard Time (GMT+03:30) | Tehran |
| 165 | Arabian Standard Time (GMT+04:00) | Abu Dhabi, Muscat |
| 170 | Caucasus Standard Time (GMT+04:00) | Baku, Tbilisi, Yerevan |
| 175 | Afghanistan Standard Time (GMT+04:30) | Kabul |
| 180 | Ekaterinburg Standard Time (GMT+05:00) | Ekaterinburg |
| 185 | West Asia Standard Time (GMT+05:00) | Islamabad, Karachi, Tashkent |
| 190 | India Standard Time (GMT+05:30) | Chennai, Kolkata, Mumbai, New Delhi |
| 193 | Nepal Standard Time (GMT+05:45) | Kathmandu |
| 195 | Central Asia Standard Time (GMT+06:00) | Astana, Dhaka |
| 200 | Sri Lanka Standard Time (GMT+06:00) | Sri Jayawardenepura |
| 201 | N. Central Asia Standard Time (GMT+06:00) | Almaty, Novosibirsk |
| 203 | Myanmar Standard Time (GMT+06:30) | Rangoon |
| 205 | S.E. Asia Standard Time (GMT+07:00) | Bangkok, Hanoi, Jakarta |
| 207 | North Asia Standard Time (GMT+07:00) | Krasnoyarsk |
| 210 | China Standard Time (GMT+08:00) | Beijing, Chongqing, Hong Kong SAR, Urumqi |
| 215 | Singapore Standard Time (GMT+08:00) | Kuala Lumpur, Singapore |
| 220 | Taipei Standard Time (GMT+08:00) | Taipei |
| 225 | W. Australia Standard Time (GMT+08:00) | Perth |
| 227 | North Asia East Standard Time (GMT+08:00) | Irkutsk, Ulaan Bataar |
| 230 | Korea Standard Time (GMT+09:00) | Seoul |
| 235 | Tokyo Standard Time (GMT+09:00) | Osaka, Sapporo, Tokyo |
| 240 | Yakutsk Standard Time (GMT+09:00) | Yakutsk |
| 245 | A.U.S. Central Standard Time (GMT+09:30) | Darwin |
| 250 | Cen. Australia Standard Time (GMT+09:30) | Adelaide |
| 255 | A.U.S. Eastern Standard Time (GMT+10:00) | Canberra, Melbourne, Sydney |
| 260 | E. Australia Standard Time (GMT+10:00) | Brisbane |
| 265 | Tasmania Standard Time (GMT+10:00) | Hobart |
| 270 | Vladivostok Standard Time (GMT+10:00) | Vladivostok |
| 275 | West Pacific Standard Time (GMT+10:00) | Guam, Port Moresby |
| 280 | Central Pacific Standard Time (GMT+11:00) | Magadan, Solomon Islands, New Caledonia |
| 285 | Fiji Islands Standard Time (GMT+12:00) | Fiji Islands, Kamchatka, Marshall Islands |
| 290 | New Zealand Standard Time (GMT+12:00) | Auckland, Wellington |
| 300 | Tonga Standard Time (GMT+13:00) | Nuku'alofa |