Other: Negative UTC offset in local environment results in banned IP "localhost" during account creation

[szc126]

Website (required)

VocaDB

Describe the bug (required)

ran into some kind of miserable timezone problem at http://localhost:5000/User/Create

• TZ='America/Juneau' dotnet run ... results in Suspicious registration form fill time (-08:59:50.9613057) from ::1. / Adding temp banned IP ::1 (calculated difference of negative 9 hours)
• TZ='Atlantic/Azores' dotnet run ... results in Suspicious registration form fill time (-00:59:50.4225254) from ::1. / Adding temp banned IP ::1 (calculated difference of negative 1 hour)
• (and similar messages under my own timezone, when I don't override TZ)

(TooFastRegistrationException is checking for differences of less than 2 seconds, it seems?)

not sure if this is a VocaDB problem or a dotnet problem? doesn't seem to be a browser problem (it happens in both Firefox and Chromium)

https://discord.com/channels/309072240639737866/1271565701601296506/1306522628051173467

Checklist (required)

Fill out the checklist. Use strikethroughs or leave fields empty if you don't know or are unable to check/test.

• Searched VocaDB/vocadb for duplicate issues.
• Tested on the beta site.
• Tested on different browsers (e.g. Firefox, Chrome, Safari, Edge).
• Checked in private mode.
• Cleared browser cache and cookies.
• Checked the DevTools console.
• Checked the syslog (mods+ only).