CODEWITHSUNDEEP
iosobjective-cnsdateformatter
Alkeemik
Alkeemik

Reputation: 51

NSDateFormatter dateFromString 1981-04-01

I have code:

NSString *str = @"1981-04-01";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"yyyy-MM-dd"];
NSDate *back = [dateFormatter dateFromString:str];

NSLog("output: %@", back); //output (null)

When i try different dates:

str = @"1982-04-01"; //also return nil

str = @"1985-04-01"; //thats looks good, output: 1985-03-31 20:00:00 +0000

Looks like my timezone is GMT+4. Testing in simulator: xcode 6.3, ios 8.3 (iphone5s)

Why NSDateFormatter returns sometimes nil?

I believe its something to do with my Region: Estonia. Images about OSX and iOS region settings.


(source: ignis.ee)


(source: ignis.ee)

RESOLVED: must be daylight saving switch issue. Please read behind @Matthias Bauch comments.

  1. Adding dateFormatter.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"]; works great!

Upvotes: 2

Views: 253

Answers (1)

Viral Savaj
Viral Savaj

Reputation: 3389

I would suggest you to just set up the time zone to GMT like

dateFormatter.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];

The full code from your view like. . 

NSString *str = @"1981-04-01";
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
dateFormatter.timeZone = [NSTimeZone timeZoneWithAbbreviation:@"GMT"];
[dateFormatter setDateFormat:@"yyyy-MM-dd"];
NSDate *back = [dateFormatter dateFromString:str];

NSLog(@"output: %@", back);

Your output like 

output: 1981-04-01 00:00:00 +0000

Upvotes: 2

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