This would allow us to compute most of needed data from the server.

We could use x-vercel-ip-timezone from Vercel by default with the option to override from the client if desired.

Some links about this:

https://twitter.com/leeerob/status/1551273570713698304/photo/1

https://github.com/vercel/examples/blob/main/edge-functions/geolocation-country-block/middleware.ts

https://vercel.com/docs/concepts/edge-network/headers#x-vercel-ip-timezone

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