ios - How to get the time in am/pm format iphone NSDateFormatter?

Question

Am working in an iPhone app with using the NSDateFormatter. Am getting the time from the webservice like "00:00:00", "16:00:00","15:30:00" and so on. I need to convert these time to if the time is "00:00:00" to "12 AM", if the time is "16:00:00" to "4 PM", if the time is "15:30:00" to "3.30 PM". I have used the below code to this but when i have pass "16:00:00" the date returns null.

 NSString *dats1 = @"16:00:00";
 NSDateFormatter *dateFormatter3 = [[[NSDateFormatter alloc] init] autorelease];
 [dateFormatter3 setDateStyle:NSDateFormatterMediumStyle];  
 [dateFormatter3 setDateFormat:@"hh:mm:ss"]; 
 NSDate *date1 = [dateFormatter3 dateFromString:dats1];
 NSLog(@"date1 : %@", date1); **// Here returning (null)**

 NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
 [formatter setDateFormat:@"hh:mm a"];
 NSLog(@"Current Date: %@", [formatter stringFromDate:date1]); **// Here also returning (null)**
 [formatter release];

When am passing "00:00:00" it is returning "12 AM" correctly. Can anyone please help me to solve this issue? Thanks in advance.

Answer 1

If your time format is in 24hrs please use "HH:mm:ss" format. Please test the code and let me know if it is working for you. I have tested and it is returning "4 PM"

NSString *dats1 = @"16:00:00";
 NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
 [dateFormatter3 setDateStyle:NSDateFormatterMediumStyle];  
 [dateFormatter3 setDateFormat:@"HH:mm:ss"]; 
 NSDate *date1 = [dateFormatter3 dateFromString:dats1];
 NSLog(@"date1 : %@", date1); **// Here returning (null)**

 [dateFormatter setDateFormat:@"hh:mm a"];
 NSLog(@"Current Date: %@", [formatter stringFromDate:date1]); **// Here also returning (null)**
 [formatter release];

Thanks.