Though some capabilities are here today with
Intl, we know from experience and data that there is significant room for improvement.
Temporal will be a new global object that acts as a top-level namespace (like
Math). It exposes many separate types of objects including
Temporal.TimeZone and several others. The Temporal Cookbook shows many "recipes" with examples of how these objects can be used in different scenarios.
You can try out Temporal today, via a non-production polyfill. Please give it a try, but don't use it in production (yet)!
Please provide feedback, and consider contributing to this effort - especially if you have experience using Moment or other date and time libraries!