nsdateformatter

I have the following code. NSDateFormatter *df = ...; [df setTimeZone:[NSTimeZone defaultTimeZone]]; [df setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSZZZ"]; NSDate * date = [df dateFromString:date_string]; //here is the problem In 24-hour mode everything is ok. When 12-hour mode is set on device, stringFromDate returns null. Format of date_string is the same all the time, date format too. Why does it happen? Try to set the locale in this way : NSLocale *twelveHourLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"]; df.locale = twelveHourLocale; To force instead to 24 hour, you can

I have this part of code: NSDate *date =nil; NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateStyle:NSDateFormatterMediumStyle]; [dateFormatter setDateFormat:@"dd-MM-yy"]; date = [dateFormatter dateFromString:inString]; [dateFormatter release]; It works perfectly fine, as expected in iOS 4.0. But the same code doesnt in 3.0. The string which I am getting, is like "12-Nov-10" and this is contained in inString pointer. The date formatter returns nil if the native OS is 3.0 or 3.1. For some reasons I need to stick to the same date format. Has anyone else

I have a date string which I want to convert to another format. The original date string example is : "2013-06-04 02:19:21 +0000" I want to convert this to "Wed, Jun 4" NSString * date_string = @"2013-06-04 02:19:21 +0000"; NSDateFormatter *complexdateFormater = [[NSDateFormatter alloc] init]; [complexdateFormater setDateFormat:@"yyyy-M-DD HH:mm:ss Z"]; NSDate* complexdate = [complexdateFormater dateFromString:date_string]; NSString *formatString = [NSDateFormatter dateFormatFromTemplate:@"EE, MMM d" options:0 locale:[NSLocale currentLocale]]; NSDateFormatter *dateFormatter = [[NSDateFormatter

In my Core Data app I am using a FetchedResultsController. Usually to set titles for headers in a UITableView you would implement the following method like so: - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { id <NSFetchedResultsSectionInfo> sectionInfo = [[<#Fetched results controller#> sections] objectAtIndex:section]; return [sectionInfo name]; } where [sectionInfo name] returns a NSString. my sectionKeyPath is based on an NSDate and this all works fine apart from the section headers it gives me are the raw date description strings (e.g. 12/12

Ive been racking my brains with no luck. Could someone please tell me how i would convert this string: "2011-01-13T17:00:00+11:00" into a NSDate? The unicode date format doc is here Also, for your situation, you could try this: // original string NSString *str = [NSString stringWithFormat:@"2011-01-13T17:00:00+11:00"]; // convert to date NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init]; // ignore +11 and use timezone name instead of seconds from gmt [dateFormat setDateFormat:@"YYYY-MM-dd'T'HH:mm:ss'+11:00'"]; [dateFormat setTimeZone:[NSTimeZone timeZoneWithName:@"Australia

I'm initializing my NSDateFormatter thusly: NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease]; [dateFormatter setLocale:[[[NSLocale alloc] initWithLocaleIdentifier:@"en_US_POSIX"] autorelease]]; [dateFormatter setDateFormat:@"EEE, d MMM yyyy HH:mm:ss z"]; [dateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]]; NSDate *date = [NSDate date]; NSString *dateString = [dateFormatter stringFromDate:date]; dateString is now: Thu, 29 Jul 2010 14:58:42 GMT+00:00 I want to get rid of the "+00:00" I'm guessing from http://unicode.org/reports/tr35/tr35-6.html#Time

Parsing a rfc3339 date with NSDateFormatter appears to be impossible, in the general case. Am I wrong? [Edit 2 years later: there is now a way! See below and footnote.] A not-especially-malleable web service is feeding me dates like: 2009-12-31T00:00:00-06:00 Rfc3339 compliant, default output of the jaxb library they're using. Note the colon, which rfc3339 requires when the offset isn't a literal "z": time-numoffset = ("+" / "-") time-hour ":" time-minute time-offset = "Z" / time-numoffset I want to parse these into NSDates. NSDateFormatter wants patterns in the syntax specified by Unicode ,

I'm having a bit of a problem with NSDateFormatter failing on one user's device (returning nil when parsing a string) and working perfectly when I run it locally (either in the simulator or on my device). I'm trying to rule out what could be causing a difference in this behaviour. My first thought was the locale but I've tried setting it explicitly to ensure the same locale is always used but it makes no difference. Here is the code: NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ssZ"]; NSLocale *locale = [[NSLocale alloc]