Improved date formatting in the 1Password desktop app

Coming back to this after seeing the original thread was marked as "solved" which I don't think is true at all. It is also still broken for me on macOS, Windows and iOS with 8.11.18/8.11.20 with display language set to English (US) and regional settings to German on all devices:

• short dates still show as mm/dd/yyyy instead of dd.mm.yyyy (except for iOS: displays correctly but broken for editing)
• long dates still show as mmmm d, yyyy instead of dd. mmmm yyyy (except for iOS: displays correctly but broken for editing)
• date picker still start the week with Sun instead of Mon (except for iOS)
• time still displays 12h AM/PM instead of 24h

1P_justin​, you wrote:

With this update, we've made things consistent by ensuring that dates saved against items always appear in a format determined by the locale set against your device (both when viewing and editing items) and never by the display language set in 1Password.

This is not true and I can prove it: Both macOS and iOS allow you to set a different display language for a single app. So when I change that to German (without touching global system language or regional settings) 1Password suddenly uses the correct date time format.

What you seem to do: Get display language from system and then assume regional settings for that language.

What you should do: Get display language and regional settings independently from each other.

Every other major app I have intensively used over the past 35 years on MS-DOS, Win95 to Win11, OS/2, Linux, FreeBSD, macOS X to 26, iOS and Android was able to do this. This has been solved decades ago and even worked in 1Password 7. So I don't really understand what the issue for 1Password is?