Convert Seconds Integer To HH:MM, iPhone

Question

I am struggling with this. I have a value in seconds that I want to display in a label in HH:MM format. I have searched the internet for ages and found some answers, but either not fully understood them, or they seem like an odd way of doing what I want. If someone could help me out on this one that would be great! Bear in mind that I am new to this games so this question may seem like a really basic one to the more experienced out there.

Answer 1

I was looking for the same thing that you are looking but couldn't find one. So I wrote one -

- (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];  } 

works perfectly in Swift as well:

 func timeFormatted(totalSeconds: Int) -> String {     let seconds: Int = totalSeconds % 60     let minutes: Int = (totalSeconds / 60) % 60     let hours: Int = totalSeconds / 3600     return String(format: "%02d:%02d:%02d", hours, minutes, seconds)  } 

Answer 2

In iOS 8.0 and higher versions it can also be done with NSDateComponentsFormatter. I need to mention that it will format the string without first leading zero, for example '9:30', but not '09:30'. But if you like to use formatters, you can use this code:

-(NSString *)getTimeStringFromSeconds:(double)seconds {      NSDateComponentsFormatter *dcFormatter = [[NSDateComponentsFormatter alloc] init];      dcFormatter.zeroFormattingBehavior = NSDateComponentsFormatterZeroFormattingBehaviorPad;      dcFormatter.allowedUnits = NSCalendarUnitHour | NSCalendarUnitMinute;      dcFormatter.unitsStyle = NSDateComponentsFormatterUnitsStylePositional;      return [dcFormatter stringFromTimeInterval:seconds]; }