CODEWITHSUNDEEP
iosobjective-cnsdatensdateformatter
Mani murugan
Mani murugan

Reputation: 1802

NSDateformatter issue in some dates

my code is 

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"EDT"]];
    [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:dd"];
    NSString *strDate = @"my date from backend";
    NSLog(@"value from backend %@",strDate);
    NSLog(@"after chnage by formatter %@",[dateFormatter dateFromString:strDate]);

log result in my console

value from backend 2014-04-18 05:01:13
after chnage by formatter 2014-04-12 23:31:00 +0000
value from backend 2014-04-18 05:01:34
after chnage by formatter (null)
value from backend 2014-04-18 05:04:27
after chnage by formatter 2014-04-26 23:34:00 +0000
value from backend 2014-04-18 05:04:47
after chnage by formatter (null)
value from backend 2014-04-18 05:05:14
after chnage by formatter 2014-04-13 23:35:00 +0000
value from backend 2014-04-18 05:05:21
after chnage by formatter 2014-04-20 23:35:00 +0000
value from backend 2014-04-18 05:08:38
after chnage by formatter (null)

why some dates are null..can anyone please help me ?

Upvotes: 0

Views: 37

Answers (2)

Anbu.Karthik
Anbu.Karthik

Reputation: 82766

if you need to change the time zone does not a matter, the date formatter is the important one both date formatter format are equal it show the correct answer otherwise it shows the null

just replace the line

[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:dd"];

into 

[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

Upvotes: 1

Matías R
Matías R

Reputation: 2195

The date format should be:

[dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

Notice I changed the dd at the end for ss. For most of the cases the date returned was wrong. For those cases where seconds were more than 30, you get null.

Upvotes: 2

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