type OceanZone = {
    left: number;
    right: number;
    tzid: string;
};
export declare const oceanZones: OceanZone[];
/**
 * Find the Etc/GMT* timezone name(s) corresponding to the given longitue.
 *
 * @param lon The longitude to analyze
 * @returns An array of strings of TZIDs
 */
export declare function getTimezoneAtSea(lon: number): string[];
export {};