(Please translate your messages into English before sending, as this is an English-language mailing list.) Two things. First, TZDB is an English-language database. If you are having trouble finding Taiwan using a traditional Chinese locale, this is something downstream from us, either CLDR[1] or your operating system's supplier, and you'll need to contact them to fix it. [1]: https://data.iana.org/time-zones/tz-link.html#notation Second, I don't observe your problem when using 'tzselect', which is the simple English-language text-based selection interface that TZDB distributes. See the shell transcript below. There is a separate entry for Taiwan, which has a distinct time zone history since 1970. There is no need for subdistricts of Taiwan, as all subdistricts have the same such history. $ tzselect Please identify a location so that time zone rules can be set correctly. Please select a continent, ocean, "coord", "TZ", "time", or "now". 1) Africa 2) Americas 3) Antarctica 4) Arctic Ocean 5) Asia 6) Atlantic Ocean 7) Australia 8) Europe 9) Indian Ocean 10) Pacific Ocean 11) coord - I want to use geographical coordinates. 12) TZ - I want to specify the timezone using a proleptic TZ string. 13) time - I know local time already. 14) now - Like "time", but configure only for timestamps from now on. #? 5 Please select a country whose clocks agree with yours. 1) Afghanistan 20) Israel 39) Qatar 2) Armenia 21) Japan 40) Réunion 3) Australia 22) Jordan 41) Russia 4) Azerbaijan 23) Kazakhstan 42) Saudi Arabia 5) Bahrain 24) Korea (North) 43) Seychelles 6) Bangladesh 25) Korea (South) 44) Singapore 7) Bhutan 26) Kuwait 45) Sri Lanka 8) Brunei 27) Kyrgyzstan 46) Syria 9) Cambodia 28) Laos 47) Taiwan 10) China 29) Lebanon 48) Tajikistan 11) Cyprus 30) Macau 49) Thailand 12) East Timor 31) Malaysia 50) Turkey 13) French S. Terr. 32) Mongolia 51) Turkmenistan 14) Georgia 33) Myanmar (Burma) 52) United Arab Emirates 15) Hong Kong 34) Nepal 53) Uzbekistan 16) India 35) Oman 54) Vietnam 17) Indonesia 36) Pakistan 55) Yemen 18) Iran 37) Palestine 19) Iraq 38) Philippines #? 47 Based on the following information: Taiwan TZ='Asia/Taipei' will be used. Selected time is now: Sun Aug 31 12:13:58 AM CST 2025. Universal Time is now: Sat Aug 30 04:13:58 PM UTC 2025. Is the above information OK? 1) Yes 2) No #? 1 You can make this change permanent for yourself by appending the line export TZ='Asia/Taipei' to the file '.profile' in your home directory; then log out and log in again. Here is that TZ value again, this time on standard output so that you can use the ./tzselect command in shell scripts: Asia/Taipei