import { DateTime } from 'luxon';
export declare const compareByCreatedAtDesc: (a: {
    created_at: string;
}, b: {
    created_at: string;
}) => number;
export declare const getSupportedTimeZones: () => string[];
export declare const getSystemTimeZone: () => string;
export declare const formatTimeZone: (timeZone: string) => string;
export declare const formatTime: (time: string) => string;
export declare const serializeDateTimePickerValue: (dateTime: DateTime, timeZone: string) => string | null;
export declare const parseDateTimePickerValue: (value: string, timeZone: string) => DateTime;