DateTime conversion with Objective C

I have a Date/T开发者_JAVA百科ime they come from a Apache server in this format :

2011-05-20T14:21:00.103-04:00

How I can convert this Date/Time to NSDate...

Thanks

Use an NSDateFormatter. You'll need to specify the dateFormat, and the patterns you can use are available here.

[NSDate dateWithString:@"2011-05-20T14:21:00.103-04:00"];