Package

Zone and Offset (tag primitives), Observation, LocalResolution, ResolveError, ZonedDateTime.

Per resolutions/4 (2026-05-24), Zone and Offset are tag primitives with no instance data — they discriminate whether a ZonedDateTime's internal representation refers to an IANA-named zone (DST rules apply) or a fixed numeric offset (no DST). The actual data (name string or offset int) lives on the ZonedDateTime itself.

Per resolutions/1, the IANA-bundled tzdata (via _TzData) is the only data source. No TzProvider abstraction.

Per resolutions/2, ZonedDateTime is the only "moment in time" type — no separate Instant. Construction via now() (UTC), now_in_zone(name), or now_at_offset(sec). Stdlib bridge via to_posix(): (I64, I64).

ZonedDateTime is REF — designed for in-place mutation in tight loops.

Public Types

• type ArithmeticError
• primitive ArithmeticOutOfRange
• primitive ArithmeticPolicyReject
• primitive Cron
• class Date
• class DayOfMonth
• type DayOfWeek
• primitive Friday
• class IntervalIter
• class IntervalRecurrence
• primitive Iso8601
• primitive LastDayOfMonth
• class LastWeekdayOfMonth
• primitive LocalAmbiguous
• primitive LocalGap
• type LocalResolution
• primitive Monday
• type MonthlyAnchor
• class MonthlyIter
• class MonthlyRecurrence
• primitive NextFireBudgetExhausted
• type NextFireError
• primitive NextFireOutOfRange
• primitive NextFireZoneNotFound
• primitive NoMoreTransitions
• class Observation
• primitive Offset
• primitive OutOfCoverage
• primitive OverflowClamp
• type OverflowPolicy
• primitive OverflowReject
• type ParseError
• class ParseInvalidDate
• class ParseInvalidFractional
• class ParseInvalidOffset
• class ParseInvalidTime
• primitive ParseMalformed
• primitive ParseTrailingGarbage
• primitive ParseUnexpectedEnd
• primitive ParseZoneNotFound
• class Period
• type Recurrence
• primitive ResolveEarliest
• type ResolveError
• primitive ResolveLatest
• primitive ResolveNextValid
• primitive ResolveStrict
• primitive Rfc2822
• primitive Rfc3339
• primitive Saturday
• primitive Sunday
• primitive Thursday
• class TimeOfDay
• primitive Tuesday
• type TzLookupError
• primitive Wednesday
• class WeekdayIter
• class WeekdayRecurrence
• primitive Zone
• primitive ZoneNotFound
• class ZonedDateTime
• type ZonedKind