Use the Temporal API

[remcohaszing]

The readme states:

In the future, smol-toml will use objects from the Temporal proposal

I would love to see this. Temporal is already shipped in browser preview releases today.

I understand if it’s still early to depend on this, but it’s nice to have a tracking issue. :)

[cyyynthia]

+1 for having a tracking issue. To make sure there's acceptable compatibility Temporal will have to be adopted by all 3 major engines (i.e. becoming Baseline) and support in an even-numbered Node.js release before it can be reasonably considered for first-class support. If support lands in the current 1.x release, it should be opt-in to not cause breaking changes (and opt-out in future major releases)

The subclassed Date object will have to stay with us for quite longer I'm afraid. Temporal being widely available (as per the Baseline compatibility definition, 2.5 years after the feature became available in all major desktop and mobile browsers) and all Node.js releases without support having reached EOL seems a reasonable bar for dropping the current implementation altogether. Other runtimes would also need to have support but I doubt Bun or Deno would not have it by then.