import { GetTimesResult } from 'suncalc';
import { Waypoint } from './waypoint.types.js';
import type { Position } from 'geojson';
/**
 * Calculates sun events for a given waypoint and date.
 *
 * @param location - The waypoint or geographic position (longitude, latitude)
 * @param date - The date for which to calculate sun events
 * @returns An object containing sun event times
 */
export declare const calculateSunEvents: (location: Waypoint | Position, date?: Date) => GetTimesResult;
/**
 * Determines if a given time is during daylight at the specified location.
 *
 * @param location - The waypoint or geographic position to check for daylight
 * @param time - The time to check (defaults to current time)
 * @returns true if the specified time is during daylight (between sunrise and sunset)
 */
export declare const isDaylight: (location: Waypoint | Position, time?: Date) => boolean;
/**
 * Determines if a given time is during night at the specified location.
 * Night is defined as the period between the end of evening civil twilight and the beginning of morning civil twilight.
 *
 * @param location - The waypoint or geographic position to check for night conditions
 * @param time - The time to check (defaults to current time)
 * @returns true if the specified time is during night
 */
export declare const isNight: (location: Waypoint | Position, time?: Date) => boolean;