Function isNightAtLocation

src/utils/time.ts:240–263

(
    latitude: number,
    longitude: number,
    date: Date = new Date(),
)

}

export function isNightAtLocation(
    latitude: number,
    longitude: number,
    date: Date = new Date(),
): boolean {
    const time = getSunsetSunriseUTCTime(latitude, longitude, date);

    if (time.alwaysDay) {
        return false;
    } else if (time.alwaysNight) {
        return true;
    }

    const sunriseTime = time.sunriseTime;
    const sunsetTime = time.sunsetTime;
    const currentTime = (
        date.getUTCHours() * getDuration({hours: 1}) +
        date.getUTCMinutes() * getDuration({minutes: 1}) +
        date.getUTCSeconds() * getDuration({seconds: 1}) +
        date.getUTCMilliseconds()
    );

    return isInTimeIntervalUTC(sunsetTime, sunriseTime, currentTime);
}

export function nextTimeChangeAtLocation(
    latitude: number,