Add proposal, design, specs and tasks for the fix-timezone-double-conversion change. Documents the root cause (icsDateToJsDate returning fake UTC causing double browser offset), the Intl.DateTimeFormat-based solution, and 40+ test scenarios covering DST, cross-timezone, half-hour offsets, and round-trip conversions. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
3 lines
40 B
YAML
3 lines
40 B
YAML
schema: spec-driven
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created: 2026-01-29
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