Cloudflare Workers Intl.DateTimeFormat ambiguity during DST transitions
Cloudflare Workers utilizes the V8 ICU implementation, allowing Intl.DateTimeFormat to accept IANA time zone names for regional date conversion. While this supports standard formatting, the Date object remains anchored to UTC timestamps. A technical uncertainty arises during Daylight Saving Time (DST) transitions, specifically when a local time occurs twice
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