TimeZones in Java

The list of timezones is very application and locale specific. Only you know what zones are most applicable to your users. We actually have different lists for different regions.

Here is our list for US users for your reference,

    "Pacific/Midway",
    "US/Hawaii",
    "US/Alaska",
    "US/Pacific",
    "America/Tijuana",
    "US/Arizona",
    "America/Chihuahua",
    "US/Mountain",
    "America/Guatemala",
    "US/Central",
    "America/Mexico_City",
    "Canada/Saskatchewan",
    "America/Bogota",
    "US/Eastern",
    "US/East-Indiana",
    "Canada/Eastern",
    "America/Caracas",
    "America/Manaus",
    "America/Santiago",
    "Canada/Newfoundland",
    "Brazil/East",
    "America/Buenos_Aires",
    "America/Godthab",
    "America/Montevideo",
    "Atlantic/South_Georgia",
    "Atlantic/Azores",
    "Atlantic/Cape_Verde",
    "Africa/Casablanca",
    "Europe/London",
    "Europe/Berlin",
    "Europe/Belgrade",
    "Europe/Brussels",
    "Europe/Warsaw",
    "Africa/Algiers",
    "Asia/Amman",
    "Europe/Athens",
    "Asia/Beirut",
    "Africa/Cairo",
    "Africa/Harare",
    "Europe/Helsinki",
    "Asia/Jerusalem",
    "Europe/Minsk",
    "Africa/Windhoek",
    "Asia/Baghdad",
    "Asia/Kuwait",
    "Europe/Moscow",
    "Africa/Nairobi",
    "Asia/Tbilisi",
    "Asia/Tehran",
    "Asia/Muscat",
    "Asia/Baku",
    "Asia/Yerevan",
    "Asia/Kabul",
    "Asia/Yekaterinburg",
    "Asia/Karachi",
    "Asia/Calcutta",
    "Asia/Colombo",
    "Asia/Katmandu",
    "Asia/Novosibirsk",
    "Asia/Dhaka",
    "Asia/Rangoon",
    "Asia/Bangkok",
    "Asia/Krasnoyarsk",
    "Asia/Hong_Kong",
    "Asia/Irkutsk",
    "Asia/Kuala_Lumpur",
    "Australia/Perth",
    "Asia/Taipei",
    "Asia/Tokyo",
    "Asia/Seoul",
    "Asia/Yakutsk",
    "Australia/Adelaide",
    "Australia/Darwin",
    "Australia/Brisbane",
    "Australia/Sydney",
    "Pacific/Guam",
    "Australia/Hobart",
    "Asia/Vladivostok",
    "Asia/Magadan",
    "Pacific/Auckland",
    "Pacific/Fiji",
    "Pacific/Tongatapu",

I've just written a small Java utility that provides a list of Windows time zones (the zones in the time zone selection dialog in Windows), and their associated Java TimeZone objects. See https://github.com/nfergu/Java-Time-Zone-List

This is based on the CLDR mappings at http://unicode.org/repos/cldr/trunk/common/supplemental/windowsZones.xml

You can reduce the list with TZ IDs which match only the following regexp

^(Africa|America|Asia|Atlantic|Australia|Europe|Indian|Pacific)/.*