Converting string MM/DD/YYYY to NSDate

问题

In my app i'm using Facebook Graph API and when I'm fetching user details i get the user's birthday as a string with format MM/DD/YYYY.

My question is, how can I convert string "MM/DD/YYYY" to NSDate?

I try doing

 NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
 [dateFormatter setDateFormat:@"MM/DD/YYYY"];
 NSDate *date = [dateFormatter dateFromString:@"08/08/2012"];
 [dateFormatter release];  

But I got the wrong date

回答1:

Using NSDateFormatter you can convert directly from a NSString to a NSDate. Here's an example:

NSDateFormatter* myFormatter = [[NSDateFormatter alloc] init];
[myFormatter setDateFormat:@"MM/dd/yyyy"];
NSDate* myDate = [myFormatter dateFromString:@"8/26/2012"];
NSLog(@"%@", myDate);

See Unicode.org for details on date formatting patterns.

回答2:

Add [dateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]]

回答3:

You are doing everything fine. Your problem is only the format string.

• Capital M is month.
• Small d is day.
• Small y is year.

Just use these symbols consistently and you should be fine.

回答4:

For exactly such cases NSDateFormatter exist.

来源：https://stackoverflow.com/questions/12129958/converting-string-mm-dd-yyyy-to-nsdate