date_locale

[petergCA]

Would you mind pointing me to the options for this customization?

[marcokreeft87]

In the end it uses the second example on the top of the page of https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat.
But if you don't pass anything it uses the locale from HA

[petergCA]

Thanks for this - I'll leave blank and see if it translates correctly!