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@burglekitt/gmt

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Temporal-based date and time utilities with timezone support and polyfill integration

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/** * Return a specific unit extracted from a PlainDateTime string. * * - Extracts "year", "month", "day", "week", "dayOfWeek", "hour", "minute", "second", or "millisecond" from a PlainDateTime. * - Returns zero-padded string for most units. * - Returns "" for invalid input. * * @param value ISO PlainDateTime string * @param unit unit to extract from the datetime * @param optionsArg optional: weekStartsOn ("monday" | "sunday") for week calculations * @returns string representation of the requested unit or "" on invalid input * * @example parseUnitFromDateTime("2024-03-15T14:30:45.123", "year") // "2024" * @example parseUnitFromDateTime("2024-03-15T14:30:45.123", "week") // "11" * @example parseUnitFromDateTime("2024-03-15T14:30:45.123", "hour") // "14" * @example parseUnitFromDateTime("2024-03-15T14:30:45.123", "millisecond") // "123" * @example parseUnitFromDateTime("invalid", "year") // "" * @example parseUnitFromDateTime("2024-01-01T00:00:00", "week", { weekStartsOn: "sunday" }) // "1" */ export declare function parseUnitFromDateTime(value: string, unit: "year" | "month" | "day" | "week" | "dayOfWeek" | "hour" | "minute" | "second" | "millisecond", optionsArg?: { weekStartsOn?: "monday" | "sunday"; }): string;