Current Location TimeZone abbrevation

Question

I want to show timezone as "IST", "EST", etc. That seems to be simple but there is an issue.When I use following code:

let timeZone = TimeZone.current.abbreviation()

For India I get "GMT+5:30" but for Toronto, I get "EDT". Please help, or let me know some other way to show such abbreviations.

EDIT 1

I came up with a workaround but still, sometimes I get some weird timezones:

func getTimeZoneAbbrevation() -> String {
    var returnTimeZone = ""
    let timezone = TimeZone.current.identifier
    let dict = TimeZone.abbreviationDictionary
    for (key,value) in dict {
        if value == timezone {
            returnTimeZone = key
            break
        }
    }
    if returnTimeZone == "" {
            if let timezone = NSTimeZone.default.abbreviation() {
                returnTimeZone = timezone
        }
    }
    return returnTimeZone
}

EDIT 2:

Have you checked this? https://stackoverflow.com/questions/27053135/how-to-get-a-users-time-zone — Kamaldeep singh Bhatia, Apr 20 '18 at 10:20
@kamaldeepsinghbhatia yes, I have already checked it, check my edit 1, I have implemented that code in my function, but the issue with that is, for Toronto it returns me "America/Toronto", which is not present in the abbreviationDictionary. — user832, Apr 20 '18 at 10:24
Note that you *should* be getting `"EDT"` for Toronto right now, because that is the *current* time zone abbreviation. They are currently in Eastern Daylight Time. — Matt Johnson-Pint, Apr 20 '18 at 17:50

Kamaldeep singh Bhatia · Answer 1 · 2018-04-23T08:09:18.030

0

This should work.

let someTime = TimeZone(identifier: "America/Toronto")
let timezone = someTime?.abbreviation()

Now timezone contains value "EDT" so you can directly use this.

Just FYI if you want to check for these identifier so you can get it from

var timeZoneIdentifiers: [String] { return TimeZone.knownTimeZoneIdentifiers }

I hope this will help now.

edited Apr 23 '18 at 08:09

answered Apr 20 '18 at 11:47

Kamaldeep singh Bhatia

732
6
18

What are you getting on Toronto? Is it "EDT"? and what you want at that place? – Kamaldeep singh Bhatia Apr 20 '18 at 12:44
I think you should check the list because there is no place for Toronto... So possibly you can check alternative location. As for India there is only "Asia/Kolkata"... Just find a city which is in same timezone. – Kamaldeep singh Bhatia Apr 20 '18 at 13:00
can you tell me how can I achieve that, find a city which is in same timezone – user832 Apr 23 '18 at 06:39
@cs832 see my edit I hope this will solve your problem – Kamaldeep singh Bhatia Apr 23 '18 at 08:09
For more details just see this answer. It is really awesome https://stackoverflow.com/a/27053592/5622566 – Kamaldeep singh Bhatia Apr 23 '18 at 08:19
yes, my solution is inspired by the StackOverflow link you provided, also the solution you provided workes for Toronto but for India it gives "GMT+5:30", what I am planning is adding timezones manually to the dictionary apple provides. – user832 Apr 23 '18 at 13:12

score 0 · Answer 2 · answered Apr 20 '18 at 11:52

0

Try this

let timeZoneDict = TimeZone.abbreviationDictionary.filter {
$0.value == TimeZone.current.identifier
}
if !timeZoneDict.isEmpty {
let timeZone = timeZoneDict.first?.key
print(timeZone)
}

answered Apr 20 '18 at 11:52

Prateek kumar

244
3
9

doesn't work for Toronto. The timeZoneDict is empty. – user832 Apr 20 '18 at 12:33

Current Location TimeZone abbrevation

2 Answers2