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@burglekitt/gmt

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

github.com/burglekitt/gmt

burglekitt/gmt

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/** * Return true when interval B is fully contained within interval A — every instant of B * falls within A. * * - Uses `Temporal.PlainTime.compare` for comparison. * - Equivalent to 4-argument `intervalContainsTime(aStart, aEnd, bStart, bEnd)`. * - Returns `false` if either interval is invalid (`start > end`). * - Returns `false` on invalid input (wrong type, malformed strings). * * @param aStart ISO 8601 time string for the outer interval start * @param aEnd ISO 8601 time string for the outer interval end * @param bStart ISO 8601 time string for the inner interval start * @param bEnd ISO 8601 time string for the inner interval end * @returns true if B is fully contained in A, or false on invalid input * * @example intervalEngulfsTime("09:00:00", "17:00:00", "12:00:00", "13:00:00") // true * @example intervalEngulfsTime("09:00:00", "17:00:00", "09:00:00", "17:00:00") // true (equal intervals) * @example intervalEngulfsTime("09:00:00", "17:00:00", "09:00:00", "12:00:00") // true * @example intervalEngulfsTime("12:00:00", "13:00:00", "09:00:00", "17:00:00") // false * @example intervalEngulfsTime("invalid", "17:00:00", "12:00:00", "13:00:00") // false */ export declare function intervalEngulfsTime(aStart: string, aEnd: string, bStart: string, bEnd: string): boolean;