Ndtyjky

I am making an app which among other things, it determines the sunset and sunrise. Nevertheless I've found some difficulties to get them using the user's local time. Therefore, I would like to know: how can I get the user's time zone in Swift?

The coordinates of my test location (Puerto Vallarta, Mex) that I load in the iPhone simulator are these:

Latitude: 20.61
Longitude: -106.23

The next is part of my code to determine the sunrise and the sunset of any location in the world:

//First we get the sunrise time.

let sunriseDate = Date(timeIntervalSince1970: sunriseValue.doubleValue)

let formatter = DateFormatter()

formatter.dateStyle = .none

formatter.timeStyle = .medium

formatter.timeZone = NSTimeZone(name: "UTC")! as TimeZone

formatter.dateFormat = "HH:mm:ss"



let sunrise = formatter.string(from: sunriseDate)

print(sunrise)



//Second, we get the sunset time

let sunsetDate = Date(timeIntervalSince1970: sunsetValue.doubleValue)



let sunset = formatter.string(from: sunsetDate)

print(sunset)

And this is what I get from the console:

Sunrise: 13:08:12
Sunset: 00:21:22

This is more than evident that the printed sunrise and sunset correspond to the UTC, nevertheless I haven't found any direct information that could help me to get the user's local time, wherever that person is.

Basically the sunrise and sunset that you see in the code above I got it from an API (openweather) from which I got their values in unix time (which I converted to date and time using this link . Now I see that I effectively got the correct sunset and sunrise but in UTC format, now I'm missing one step to go from UTC to local time.

So, in summary, I got:

from API: time in unix time (e.g. sunrise = 1541855294; sunset = 1541895681;), extract from it the time using DateFormatter() (see code above) and I got the UTC time (formatter.dateFormat = "HH:mm:ss").

I hope that with this modification the question is more clear now.

That's why I wanted to ask you if you cand lend me a hand with this, please :)

Thanks in advance and I apologize for any misunderstanding!

Did you try to use the Date method description(with locale: Locale?) to get user's localized time ? This will give you the time of the device

let date = Date().description(with: .current)

    print(date) //Saturday, November 10, 2018 at 11:30:58 AM Central Standard Time

A string representation of the Date, using the given locale, or if the locale argument is nil, in the international format YYYY-MM-DD HH:MM:SS ±HHMM, where ±HHMM represents the time zone offset in hours and minutes from UTC (for example, “2001-03-24 10:45:32 +0600”).

After that you can give it any formatt that you want...