How to change the date type to "Jan 21, 2013 5:30 AM" using NSDateFormatter in iOS

Question

I wish to change the date format from "2013-01-21 11:55:00" to "Jan 21, 2013 5:30 AM".

I tried the below code. But it gives a constant date.

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

[dateFormatter setDateStyle:NSDateFormatterMediumStyle];
[dateFormatter setTimeStyle:NSDateFormatterMediumStyle];

NSDate *myDate = [NSDate dateWithTimeIntervalSinceReferenceDate:162000];
NSLog(@"%@",[dateFormatter stringFromDate:myDate]);

The above code gives constant output : Jan 3, 2001 2:30:00 AM

But in my case, date is dynamic.

If you want the output to be dynamic; Your inputs cannot be static. You are passing `162000`, and that's why you are getting constant output (with time changed, I guess). — viral, Apr 02 '13 at 07:11
http://unicode.org/reports/tr35/tr35-6.html#Date_Format_Patterns — Chandu, Apr 02 '13 at 07:22

score 2 · Accepted Answer · answered Apr 02 '13 at 07:11

    NSString *firstDate = @"2013-01-21 11:55:00";
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"yyyy'-'MM'-'dd  HH':'mm':'ss"];
    NSDate *date = [dateFormatter dateFromString:firstDate];
    [dateFormatter setDateFormat:@"MMM d, yyyy h:mm a"];

    NSLog(@"Expected Result___ %@",[dateFormatter stringFromDate:date]);

Hasintha Janka · Answer 2 · 2013-04-02T07:18:01.417

1

Try this

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];

[dateFormatter setDateFormat:@"MMM d, yyyy h:mm a"];

NSDate *myDate = [NSDate dateWithTimeIntervalSinceReferenceDate:162000];
NSLog(@"%@",[dateFormatter stringFromDate:myDate];

Try [NSDate date] instead [NSDate dateWithTimeIntervalSinceReferenceDate:162000].

edited Apr 02 '13 at 07:18

answered Apr 02 '13 at 07:08

Hasintha Janka

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I get a constant "Jan 3, 2001 2:30 AM". But I need the conversion to be dynamic. – Ambili B Menon Apr 02 '13 at 07:14
Yes. I have got today's date in the required format now when I used [NSDate date]. Is there anyway I can pass the date dynamically? – Ambili B Menon Apr 02 '13 at 07:23
You can get your date from string.http://stackoverflow.com/questions/5604657/converting-nsstring-to-date – Hasintha Janka Apr 02 '13 at 07:54

Lithu T.V · Answer 3 · 2013-04-02T07:12:51.020

well you get constant output since you give constant input as 162000 !!!

First get the date from the string using its format then use the new format to get string from the obtained date

use this to output format as

@"MMM d, yyyy h:mm a"

NSDateFormatter *dateFormatter=[[NSDateFormatter alloc]init];
[dateFormatter setDateFormat:@"MMM d, yyyy h:mm a"];
NSLog(@"%@",[dateFormatter stringFromDate:[NSDate date]]);

How to change the date type to "Jan 21, 2013 5:30 AM" using NSDateFormatter in iOS

3 Answers3