import moment from "moment-timezone";
import * as ULTIPA from "../types/types";
export declare class UltipaDatetime {
    static datetimeInt2datetimeStr(intString: string): string;
    static datetimeStr2datetimeString(time: string): string;
    static getMoment(timestamp: string | number, timezone: ULTIPA.Ttimezone): moment.Moment;
    static timestamp2Str(timestamp_seconds: number, timezone: ULTIPA.Ttimezone): string;
    static timestampStr2int(timestamp_str: string, timezone: ULTIPA.Ttimezone): number;
    /**
 * Parses a timezone offset string or number into seconds.
 * Supports formats: "+08:30", "-05:00", "+2", "-0300", "8.5", etc.
 */
    static parseTimezoneOffsetToSeconds(offset: string | number): number;
}