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areZonedEqual: Compare two zoned datetime strings for exact local-field equality.areZonedEqualBy: Compare two zoned ISO datetime strings for equality at a given unit.isAfterZoned: Return whether value1 represents an instant strictly after value2.isBeforeZoned: Return whether value1 represents an instant strictly before value2.isBetweenZoned: Return true when zoned is between start and end (inclusive by default).isInDaylightSaving: Check whether a zoned value’s instant falls within daylight saving time.isZonedBusinessDay: Return true when value falls on a Monday–Friday ISO business day in the given timezone.isZonedFuture: Return true when value represents an instant strictly after now.isZonedPast: Return true when value represents an instant strictly before now.isZonedRelativeDay: Return true when value’s local calendar day falls offsetDays days from today in value’s own IANA timeZone.isZonedThisUnit: Return true when value’s local calendar day falls in the same unit as today, both resolved in value’s own IANA timeZone.isZonedWeekend: Return true when value’s local calendar day falls on a weekend for locale.