@burglekitt/gmt/dist/zoned/parse/parseHourFromZoned.js

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

import { Temporal } from "@js-temporal/polyfill";
import { isValidZonedDateTime } from "../validate/index.js";
/**
 * Return the hour (0-23) from a zoned datetime string.
 *
 * - Returns zero-padded string for hour.
 * - Returns "" for invalid input.
 *
 * @param value ISO zoned datetime string (e.g., "2024-03-15T14:30:45.123+00:00[UTC]")
 * @returns Hour (00-23) or "" on invalid input
 *
 * @example parseHourFromZoned("2024-03-15T14:30:45+00:00[UTC]") // "14"
 * @example parseHourFromZoned("invalid") // ""
 */
export function parseHourFromZoned(value) {
    if (!isValidZonedDateTime(value)) {
        return "";
    }
    try {
        const zonedDateTime = Temporal.ZonedDateTime.from(value);
        return zonedDateTime.hour.toString().padStart(2, "0");
    }
    catch {
        return "";
    }
}