yunohost-admin/app/src/i18n/supportedLocales.js

// When adding a new locale, check in date-fns (time/date i18n) if this locale
// is available or if an appropriate fallback is available.
// date-fns locales can be found here : https://github.com/date-fns/date-fns/tree/master/src/locale
// If a new locale or a new date-fns locale is added, add it to the supported
// locales list in `app/vue.config.js`

export default {
  ar: {
    name: 'عربي'
  },
  bn_BD: {
    name: 'বাংলা',
    dateFnsLocale: 'bn'
  },
  br: {
    name: 'Brezhoneg',
    dateFnsLocale: 'fr'
  },
  ca: {
    name: 'Català'
  },
  ckb: {
    name: 'کوردی',
    dateFnsLocale: 'fa-IR'
    // FIXME fallback to Farsi (`fa-IR`) is arbitrary, some would probably prefer Arabic (`ar`)...
  },
  cs: {
    name: 'Čeština'
  },
  da: {
    name: 'Dansk'
  },
  de: {
    name: 'Deutsch'
  },
  el: {
    name: 'Eλληνικά'
  },
  en: {
    name: 'English',
    dateFnsLocale: 'en-GB'
  },
  eo: {
    name: 'Esperanto'
  },
  es: {
    name: 'Español'
  },
  eu: {
    name: 'Euskara'
  },
  fa: {
    name: 'فارسی',
    dateFnsLocale: 'fa-IR'
  },
  fi: {
    name: 'Suomi'
  },
  fr: {
    name: 'Français'
  },
  gl: {
    name: 'Galego'
  },
  he: {
    name: 'עברית'
  },
  hi: {
    name: 'हिन्दी'
  },
  hu: {
    name: 'Magyar'
  },
  id: {
    name: 'Bahasa Indonesia'
  },
  it: {
    name: 'Italiano'
  },
  kab: {
    name: 'Taqbaylit',
    dateFnsLocale: 'ar-DZ'
  },
  lt: {
    name: 'Lietuvių'
  },
  mk: {
    name: 'македонски'
  },
  nb_NO: {
    name: 'Norsk bokmål',
    dateFnsLocale: 'nb'
  },
  ne: {
    name: 'नेपाली',
    dateFnsLocale: 'en-GB'
  },
  nl: {
    name: 'Nederlands'
  },
  oc: {
    name: 'Occitan',
    dateFnsLocale: 'ca'
  },
  pl: {
    name: 'Polski'
  },
  pt: {
    name: 'Português'
  },
  pt_BR: {
    name: 'Português brasileiro',
    dateFnsLocale: 'pt-BR'
  },
  ru: {
    name: 'Русский'
  },
  sk: {
    name: 'Slovak'
  },
  sl: {
    name: 'Slovenščina'
  },
  sv: {
    name: 'Svenska'
  },
  te: {
    name: 'Telugu'
  },
  tr: {
    name: 'Türkçe'
  },
  uk: {
    name: 'Українська'
  },
  zh_Hans: {
    name: '简化字',
    dateFnsLocale: 'zh-CN'
  }
}