Question

I have to convert the given time in 24 hr format.But I did not get it.Don’t know where I m going wrong.
If I have TimeStart as 1:15 PM then I should get 13:15 ..

Item *item=[sectionItems objectAtIndex:itemId];
 NSLog(@"%@",item.TimeStart);
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateFormat:@"HH:mm a"];
    NSString *formattedDateString = [dateFormatter stringFromDate:item.TimeStart];
    NSLog(@"%@",formattedDateString);

In the code above I have a Item class and that I have NSString *TimeStart;
When I see formattedDateString it is returning null.How can I fix it ?

Answer 1

 Item *item=[sectionItems objectAtIndex:itemId];
  NSLog(@"%@",item.TimeStart);

NSString *str = @"1:45.PM";// put here item.TimeStart

NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateFormat:@"hh:mm.a"];// here give the format which you get in TimeStart

NSDate *date = [dateFormatter dateFromString: str];

dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatter setDateFormat:@"HH:mm"];

NSString *convertedString = [dateFormatter stringFromDate:date];
NSLog(@"Converted String : %@",convertedString);