How to format time with NSDateFormatter like this HH:mm:ss

Question

I have the duration of a song in seconds.

After following calculations, I have the time in hour, minutes and seconds.

int hour = time / 3600;
int minute = (time / 60) % 60;
int second = time % 60;

I need to show them with this format HH:mm:ss

How can I do that?

http://stackoverflow.com/questions/1739383/convert-seconds-integer-to-hhmm-iphone — Tendulkar, Sep 03 '13 at 06:41
like most of the answers point out, a NSDateFormatter isn't needed for what you ask — Jerome Diaz, Sep 03 '13 at 06:41
can't you show it like this: NSLog(@"Final OutPut>> %02d:%02d:%02d", hour, minute, second); — D-eptdeveloper, Sep 03 '13 at 06:59

score 3 · Accepted Answer · answered Sep 03 '13 at 06:40

It could be helpful

- (NSString *)timeFormatted:(int)totalSeconds
{

    int seconds = totalSeconds % 60; 
    int minutes = (totalSeconds / 60) % 60; 
    int hours = totalSeconds / 3600; 

    return [NSString stringWithFormat:@"%02d:%02d:%02d",hours, minutes, seconds]; 
}

score 2 · Answer 2 · answered Sep 03 '13 at 06:39

2

You needn't to use a NSDateFormatter according to your description

int hour = time / 3600;
int minute = (time / 60) % 60;
int second = time % 60;

NSString *yourDate = [NSString stringWithFormat:@"%02d:%02d:%02d", hour, minute, second, null];

answered Sep 03 '13 at 06:39

Jerome Diaz

1,746
8
15

Does it make the correct format for all of cases? – aakpro Sep 03 '13 at 06:53
yes : '%02d' display a int with at least two digits, adding '0' before if necessary : 0 becomes '00', 1 becomes '01', ... when the number is greater than 9 it remains unchanged – Jerome Diaz Sep 03 '13 at 07:59

score 2 · Answer 3 · answered Sep 03 '13 at 06:40

2

This will append 0 and make it exactly 2 characters..

NSString *str = [NSString stringWithFormat:@"%02d:%02d:%02d",hour,minute,second ];

answered Sep 03 '13 at 06:40

TorukMakto

2,066
2
24
38

score 1 · Answer 4 · answered Sep 03 '13 at 06:37

1

Try it

int hour = time / 3600;
int minute = (time / 60) % 60;
int second = time % 60;

 NSString *dateStr = [NSString stringWithFormat:@"%d %d %d",hour,minute,second];

    NSDateFormatter *dateFormat = [[NSDateFormatter alloc] init];
    [dateFormat setDateFormat:@"HH:mm:ss"];
    NSDate *date1 = [dateFormat dateFromString:dateStr];

Hope it will help you.

answered Sep 03 '13 at 06:37

Tamnna

250
2
10

Why create a date from the string? Not to mention that the date format you gave doesn't match the string. – rmaddy Sep 03 '13 at 06:54

score 0 · Answer 5 · answered Sep 03 '13 at 06:40

0

NSString *time = [NSString stringWithFormat:@"%d:%d:%d", hour, minute, second];

answered Sep 03 '13 at 06:40

Lokesh Chowdary

816
5
22

%02d should be used instead of %d – Jerome Diaz Sep 03 '13 at 08:00

score 0 · Answer 6 · answered Sep 03 '13 at 06:43

0

Try this code

   float seconds = totalSeconds % 60; 
   float minutes = (totalSeconds / 60) % 60; 
   float hours = totalSeconds / 3600; 
   return [NSString stringWithFormat:@"%02f:%02f:%02f",hours, minutes, seconds];

answered Sep 03 '13 at 06:43

NANNAV

4,875
4
32
50

seconds, minutes and hours should be integers not float – Jerome Diaz Sep 03 '13 at 08:00

How to format time with NSDateFormatter like this HH:mm:ss

6 Answers6