TimeZoneChange

final class TimeZoneChange : Model, @unchecked Sendable

A TimeZoneChange model says that at a specific UTC Date the ship will adopt a given timezone, specified by abbreviation and UTC offset.

The ‘current’ TimeZoneChange is the one with the a start date in the most recent past. The timezone indicated by the current TimeZoneChange is in force until the next (in Date order) TimeZoneChange becomes current.

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Properties

  • id

    The TimeZoneChange’s ID, provisioned automatically.

    Declaration

    Swift

    @TimeZoneChange
.ID var id: UUID? { get set }
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  • The time, in absolute tems, when this Time Zone comes into effect. The TZ stays in effect until superceded by another TimeZoneChange; the last one is in effect forever, as far as we’re concerned.

    Declaration

    Swift

    @TimeZoneChange
.Field var startTime: Date { get set }
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  • Abbreviation of the timezone, such as EST.

    Declaration

    Swift

    @TimeZoneChange
.Field var timeZoneName: String { get set }
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  • Foundation has a bunch of TimeZone Identifier strings for timezones, and they specify a timezone with more granularity than an EST-style abbreviation. For example, America/Halifax and America/Puerto_Rico are both in the AST timezone, but Halifax observes DST and Puerto Rico doesn’t.

    Declaration

    Swift

    @TimeZoneChange
.Field var timeZoneID: String { get set }
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Initializaton

  • Declaration

    Swift

    init()
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  • Initializes a new TimeZoneChange.

    Declaration

    Swift

    init(startTime: Date, name: String, id: String) throws

    Parameters

    startTime

    When the timezone goes into effect
    offset

    GMT offset in hours.
    name

    The abbreviated name for the timezone, e.g. “EST”.
    id

    The Apple identifier for the timezone, e.g. “America/New_York”.
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