@burglekitt/gmt/dist/plain/get/getDay.js

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

import { Temporal } from "@js-temporal/polyfill";
import { getSystemTimeZone } from "../../zoned/get/getSystemTimeZone.js";
/**
 * Return the current day of month using the system timeZone.
 *
 * - Uses Temporal.Now.zonedDateTimeISO to get current day in system timezone.
 * - Returns zero-padded string (e.g., "29").
 * - Returns "" when system timezone is unavailable.
 *
 * @returns current day string (zero-padded) or "" on invalid
 *
 * @example getDay() // "29"
 * @example getDay() // "" (when system timeZone unavailable)
 */
export function getDay() {
    const timeZone = getSystemTimeZone();
    if (!timeZone)
        return "";
    try {
        return Temporal.Now.zonedDateTimeISO(timeZone)
            .day.toString()
            .padStart(2, "0");
    }
    catch {
        return "";
    }
}