import { CalendarDate, type DateValue, fromDate, toCalendarDate } from '@internationalized/date'; const TIMEZONE = 'Asia/Seoul'; export function dateToCalendarDate(date: Date | null): CalendarDate | null { if (!date) return null; return toCalendarDate(fromDate(date, TIMEZONE)); } export function calendarDateToDate(value: DateValue | null): Date | null { if (!value) return null; return value.toDate(TIMEZONE); }