Shipped this.
You can find it in the Settings -> Profile under the Timezone settings.
Defaults to your browser language, preserving existing behavior.
You can search your language in English or in your native language. Eg. it will find "Japanese" and "日本語" as well.
We support 245 languages out of the box, should be plenty.
A feature request for this app!!
Please make it possible to configure the target language for the translation feature.
I'm not a native English speaker, but my devices' language settings are configured in English (because it improves my development experience).
commit c2a1cfb