iphone - Convert NSString of a date to an NSDate -

this might silly question, can't seem find answer on here or in documentation.

i want convert nsstring such @"9/22/2010 3:45 pm" nsdate.

i know use nsdateformatter, problems

1. the month 1 or 2 digits
2. likewise, date 1 or 2 digits
3. hours 1 or 2 digits
4. what do am/pm?

nsdateformatter *dateformat = [[nsdateformatter alloc] init]; [dateformat setdateformat:@"mm/dd/yyyy h:mm a"]; nsdate *date = [dateformat datefromstring:datestr]; [dateformat release]; 

there no problem in 2 digit day or 2 digit month.

this must you.