[React-Native-Windows] Cant format the date, change input styles (font family, font size) and change language

Start by reading the React Native Windows implementation and its date picker prop definitions; the issue provides no file or test names. Check how Windows handles date formatting, text styling, and locale for the shown DateTimePicker props. Done means establishing which of these behaviors are supported and fixing the reported ones with coverage; the issue has no reproducible sample or environment details for the picker itself.

Bug report

Summary

Hello!

Guys im using React Native Windows, and i want to do some basic stuff but i cant!

this is how i'm using it

<DateTimePicker mode="date" display="default" locale={"es"} testID="date-input" onChange={(event, selectedDate) => { const currentDate = selectedDate || values.dateOfBirth; setFieldValue('dateOfBirth', currentDate); onChange('dateOfBirth', currentDate.toISOString()); }} value={values.dateOfBirth} style={[styles.codeInput, {height: 55}]} textColor="red" // this color also doesnt work />

1. Format: Apparently i cannot format the date is getting displayed in the input (It gets the format from the system), when trying to use the formatDate im getting an error

Type '{ mode: "date"; display: "default"; locale: string; dateFormat: string; testID: string; onChange: (event: DateTimePickerEvent, selectedDate: Date) => void; value: Date; style: ({ ...; } | { ...; })[]; textColor: string; }' is not assignable to type 'IntrinsicAttributes & (Readonly<Readonly<Omit<ViewProps, "children"> & BaseOptions & { maximumDate?: Date; minimumDate?: Date; } & { ...; }> & { ...; }> | Readonly<...> | Readonly<...>)'. Property 'dateFormat' does not exist on type '(IntrinsicAttributes & Readonly<Readonly<Omit<ViewProps, "children"> & BaseOptions & { maximumDate?: Date; minimumDate?: Date; } & { ...; }> & { ...; }>) | (IntrinsicAttributes & Readonly<...>)'.ts(2322)

2. Styling: I cannot style the text in the input, i want to be able to change the font family and the font size and its no possible

3. Locale: I configured my Datepicker to locale='es' or locale='es-ES' and its always in english, is it possible to change ?

Reproducible sample code

I cant have a reproduceable code for react native windows, please refer to the summary theres nothing much to add there

Steps to reproduce

use it like this
<DateTimePicker mode="date" display="default" locale={"es"} testID="date-input" onChange={(event, selectedDate) => { const currentDate = selectedDate || values.dateOfBirth; setFieldValue('dateOfBirth', currentDate); onChange('dateOfBirth', currentDate.toISOString()); }} value={values.dateOfBirth} style={[styles.codeInput, {height: 55}]} textColor="red" // this color also doesnt work />
and you wont be able to format your date, style the input or change the locale

Environment info

npx react-native info output: System:
OS: Windows 11 10.0.26100
CPU: (8) x64 Intel(R) Core(TM) i7-10610U CPU @ 1.80GHz
Memory: 10.90 GB / 31.73 GB
Binaries:
Node:
version: 18.20.8
path: c:\Program Files\nodejs\node.EXE
Yarn:
version: 1.22.22
path: C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm:
version: 10.8.2
path: c:\Program Files\nodejs\npm.CMD
Watchman: Not Found
SDKs:
Android SDK: Not Found
Windows SDK:
AllowDevelopmentWithoutDevLicense: Enabled
AllowAllTrustedApps: Enabled
Versions:
- 10.0.18362.0
- 10.0.19041.0
- 10.0.22621.0
IDEs:
Android Studio: Not Found
Visual Studio:
- 17.13.35825.156 (Visual Studio Community 2022)
Languages:
Java: Not Found
Ruby: Not Found
npmPackages:
"@react-native-community/cli":
installed: 15.0.1
wanted: 15.0.1
react:
installed: 18.3.1
wanted: 18.3.1
react-native:
installed: 0.77.2
wanted: ^0.77.0
react-native-windows:
installed: 0.77.0
wanted: 0.77.0
npmGlobalPackages:
"react-native": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: Not found
newArchEnabled: Not found

info React Native v0.79.2 is now available (your project is running on v0.77.2).

# paste it here

Time zone name (If the problem you have is related to unexpected time / date. See list in https://en.wikipedia.org/wiki/List_of_tz_database_time_zones).

"@react-native-community/datetimepicker": "^8.3.0",

iOS / Android version: Im using Windows