How to change the browsers locale?

[MariovanZeist]

I have been reading the page about Blazor Globalization, and specifically this part

And for some reason, I don't get it to work.
I create a default Blazor webapp, and add an InputDateTime to the Counter page.
I tested this application on 2 different browsers, one set to English and the other to Dutch.

The input on the English browser accepts a DateTime in the format mm\dd\yyyy.

On the Dutch browser, the input accepts a DateTime in the following format dd-mm-yyyy.

What I am looking for is a way to have both browsers use the same formatting (So basically I want to set the locale)

I tried adding

builder.Services.AddLocalization();

app.UseRequestLocalization("nl-NL");

To force both browsers to have the Input accept the DateTime in the format dd-mm-yyyy
But it doesn't seem to work.

(My ultimate goal is that users can select the locale they want, but for now I am content with statically setting the locale to the one I want)
I looked for other issues, but the relevant ones point to the same page referred to at the top. I am probably missing something obvious, but I am a bit stumped.
I would appreciate any help.

[MariovanZeist]

Hmm reading up on it some more, it isn't possible to change the browser's locale programmatically at all. So this issue has nothing to do with Blazor.
My only option is to make a custom input component to do the datetime part. (and maybe also the number part for the comma/dot issue)