sunrise for lat/lon in UTC+8 erroneosuly set to 00:00:00 UTC (should be on previous day) about sunrisesunset HOT 1 OPEN

package main

import (
	"fmt"
	"log"
	"time"

	"github.com/kelvins/sunrisesunset"
)

const (
	Location  = "Europe/Berlin"
	Latitude  = 53.536268
	Longitude = 9.992086
	// StartDate = "2018-01-01"
	StartDate = "2021-09-18"
	// EndDate   = "2099-12-31"
	EndDate = "2021-09-30"
)

func main() {
	loc, err := time.LoadLocation(Location)
	if err != nil {
		log.Fatalf("Failed to load location %q: %v", Location, err)
	}

	start, err := time.ParseInLocation("2006-01-02", StartDate, loc)
	if err != nil {
		log.Fatalf("Failed to parse start date %q: %v", StartDate, err)
	}

	end, err := time.ParseInLocation("2006-01-02", EndDate, loc)
	if err != nil {
		log.Fatalf("Failed to parse end date %q: %v", EndDate, err)
	}

	for t := start; !t.After(end); t = t.AddDate(0, 0, 1) {
		_, offset := t.Zone()
		sunrise, sunset, err := sunrisesunset.GetSunriseSunset(Latitude, Longitude, float64(offset)/3600.0, t)

		// If no error has occurred, print the results
		if err == nil {
			fmt.Printf("Sunrise @ %s: %s\n", t.Format("2006-01-02"), sunrise.Format("15:04:05")) // Sunrise: 06:11:44
			fmt.Printf("Sunset @ %s : %s\n", t.Format("2006-01-02"), sunset.Format("15:04:05"))  // Sunset: 18:14:27
		} else {
			fmt.Println(err)
		}
	}
}