[source] (https://w3c.github.io/i18n-drafts/questions/qa-number-format.en.html) [en] Nothing to do with the topic, just a small precision. In https://w3c.github.io/i18n-drafts/questions/qa-number-format.en.html#numbering-systems `١٢٬٣٤٥` are _Arabic-indic_ digits. (https://www.unicode.org/charts/PDF/U0600.pdf, p59) BTW, it is `12345` digits which are sometime called _Arabic_. (https://en.wikipedia.org/wiki/Arabic_numerals) used globally in the Maghreb region of North Africa.