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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 intervals `[aStart, aEnd]` and `[bStart, bEnd]` share at least one instant. * * - Uses `Temporal.Instant.compare` for comparison (same instant semantics). * - Adjacent intervals (e.g. `aEnd === bStart`) do NOT overlap — returns `false`. * - Returns `false` if either interval is invalid (`start > end`). * - Returns `false` on invalid input (wrong type, malformed strings, leap seconds). * * @param aStart ISO 8601 UTC datetime string for the first interval start * @param aEnd ISO 8601 UTC datetime string for the first interval end * @param bStart ISO 8601 UTC datetime string for the second interval start * @param bEnd ISO 8601 UTC datetime string for the second interval end * @returns true if intervals overlap, or false on invalid input * * @example intervalsOverlapUtc("2024-01-01T00:00:00Z", "2024-06-30T23:59:59Z", "2024-04-01T00:00:00Z", "2024-12-31T23:59:59Z") // true * @example intervalsOverlapUtc("2024-01-01T00:00:00Z", "2024-06-30T23:59:59Z", "2024-07-01T00:00:00Z", "2024-12-31T23:59:59Z") // false (adjacent) * @example intervalsOverlapUtc("2024-01-01T00:00:00Z", "2024-06-30T23:59:59Z", "2024-07-02T00:00:00Z", "2024-12-31T23:59:59Z") // false (disjoint) * @example intervalsOverlapUtc("invalid", "2024-06-30T23:59:59Z", "2024-04-01T00:00:00Z", "2024-12-31T23:59:59Z") // false */ export declare function intervalsOverlapUtc(aStart: string, aEnd: string, bStart: string, bEnd: string): boolean;