Files
LEDMatrix/test
ChuckBuildsandClaude Opus 5 dcba6120f9 fix(web): compare zones on fields Intl has always had
dateStyle/timeStyle are late additions to Intl -- Firefox shipped them in
91 -- and an implementation that does not know them ignores them and
formats the date alone. The comparison would then read New York, Chicago
and Madrid as the same zone and tick the step for a timezone that is
plainly wrong, which is the failure the check exists to catch. Silent, and
only on older browsers.

Explicit numeric fields (year/month/day/hour/minute) have been in Intl
since ECMA-402 v1, so there is nothing left to degrade to.

The options look like a stylistic choice, so a test pins them: it reads the
comparison with comments stripped -- the comment names dateStyle to explain
why it is not used -- and fails if either style option comes back or a
time field is dropped.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01STMbQE4YctTacQXfbYqKuW
2026-08-17 15:43:38 -04:00
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