From dev testing:
- BillEditor 'Geplanter Versand' was a native <input type=datetime-local> →
rendered US date + 12h regardless of settings. Split into LocalizedDateInput
+ TimeField (honour general_date_format + general_time_format), recombined
into the YYYY-MM-DDTHH:MM the payload/scheduler expect.
- InstallmentsPanel 'Send on' native <input type=date> (browser-locale via a
lang hint, wrong in Safari/Firefox) → LocalizedDateInput, consistent in every
browser. (Luca approved converting it.)
- Business-profile Timezone was a free-text input → dropdown of the full IANA
list (Intl.supportedValuesOf, CH/LI fallback), blank = system default.
Luca
43b10f91c0