NSDateFormatter_ISO_8601 - Category on NSString to Convert Date String in ISO_8601 Format to NSDate

Use

[dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSSSSSZZZZZ"];

To convert

2014-03-04T11:19:40.0139887+00:00

to an NSDate

2014-03-04 11:19:40 +0000

Should handle time zone correctly [+01:00]

EXAMPLE

We had a token issued with a

start date[2014-03-04] (GMT +00:00)

NSString:@"2014-03-04T11:19:40.0139887+00:00"

and

enddate [month later] [2014-04-01]

NSString:@"2014-04-01T11:19:40.0139887+01:00"

End date was in (British Summer Time) BST so one hour ahead (+01:00)

Using

[dateFormatter setDateFormat:@"yyyy-MM-dd'T'HH:mm:ss.SSSSSSSZZZZZ"];

start date

IN :NSString:2014-03-04T11:19:40.0139887+00:00

OUT:  NSDate:2014-03-04 11:19:40 +0000

enddate

IN :NSString:2014-04-01T11:19:40.0139887+01:00
OUT:  NSDate:2014-04-01 10:19:40 +0000

HANDLING 'T'

Items in single quotes arent parsed and are returned as is so 'T' always maps to 'T'

TIMEZONE - Z - Zulu time

http://en.wikipedia.org/wiki/ISO_8601#Time_offsets_from_UTC

FROM
http://stackoverflow.com/questions/3094730/iphone-nsdateformatter-timezone-conversion

To process the time zone with the colon in it, you just need to use 5 'Z's.

OTHER

http://www.unicode.org/reports/tr35/tr35-25.html#Date_Format_Patterns

Timezones - http://www.unicode.org/reports/tr35/tr35-25.html#Time_Zone_Fallback