> have to agree on what "now" means, even when governments change DST rules with very little notice.
I didn't spot how Temporal fixes this. What happens when "now" changes? Does the library get updated and pushed out rapidly via browsers?
Typically time zone data is updated in IANA's time zone database. That data would need to be updated in the implementation. In this case, the browser would need to update their time zone data.
Right, browsers own it instead of websites needing to rebuild Moment.js bundles. Additionally, most browsers pass the ownership further to the user's OS as the IANA timezone database is a useful system-level service and best updated at the cadence of OS "required" updates.