export function currentZone(): string { return Intl.DateTimeFormat().resolvedOptions().timeZone } export function localToUtcDate(date: Date): Date { return new Date(date.getTime() - date.getTimezoneOffset() * 60_000) } export function utcToLocalDate(date: Date): Date { return new Date(date.getTime() + date.getTimezoneOffset() * 60_000) }