Want to target prospects by their timezone but I am unable to filter by the TimeZone attribute

Sorr for the delay ConorIrvine , currently we capture prospects (unauthenticated customers/visitors) data using braze SDKs from users' browser settings, I know this is not ideal but we are working towards a dev solution towards collecting data from IP logins, is there a better way to sync location (states and other granular data if possible) for unknown profiles and segment them so we can filter users based on locations and tailor our offerings accordingly. Let me know if you need more info. Thanks heaps.