UTC instants, DST-correct zone math, cron, durations and Intl formatting with an explicit timezone. 

@ultimat3/time

UTC instants, DST-correct zone math, cron, durations and Intl formatting with an explicit timezone

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time

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		@@ -39,3 +39,7 @@ # @ultimat3/time — agent notes
		the direction that fails dangerous: an abbreviation names no DST rule. So the judgement is never
		delegated to `Intl`. `canonicalTimeZone` asserts the structural property itself: a zone is
		delegated to `Intl`. Re-measured 2026-08-27 when the Bun 1.3 reversal was trialled:
		`new Intl.DateTimeFormat('en', { timeZone: 'CET' })` still THROWS on 1.3.14 and resolves on 1.4.0,
		while both list the same 445 zones — so the two ICUs disagree in the direction this rule already
		refuses, and a structural judgement is the only thing that answers the same on either runtime.
		That is the whole argument, and it is why the trial changed nothing here. `canonicalTimeZone` asserts the structural property itself: a zone is
		`Area/Location`, and `UTC` is the one legal exception. Never a denylist of the names ICU newly
		@@ -42,0 +46,0 @@ accepts — that list grows with every tzdata and ICU release, and no rule in it keeps `CET` out

		{
		"name": "@ultimat3/time",
		"version": "18.0.0",
		"version": "19.0.0",
		"description": "UTC instants, DST-correct zone math, cron, durations and Intl formatting with an explicit timezone",
		@@ -37,4 +37,4 @@ "license": "MIT",
		"dependencies": {
		"@ultimat3/core": "18.0.0"
		"@ultimat3/core": "19.0.0"
		}
		}

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