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Editorial Team
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Asked: 2026-06-17T08:51:44+00:00

I want to use NSDate and NSTimer to retrieve the elapsed time between I

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I want to use NSDate and NSTimer to retrieve the elapsed time between I press a start button and a stop button and present the time in seconds. Then I want to use the time for a calculation. I know how to get the time but it is always in format like this 2013-01-15 14:01:55.369.
How do I subtract one time from the other to get the seconds.
I am not sure how to use NDDate and NSTimer.
This should be really easy but I am sort of stuck here.

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1 Answer

  1. Editorial Team
    //Make two properties `NSDate *startDate, *endDate`

//in the action method of start Button 
startDate=[NSDate date];

//in the action method of stop Button
stopDate=[NSDate date];
long elapsedSeconds=[stopDate timeIntervalSinceDate:startDate];
NSLog(@"Elaped seconds:%ld seconds",elapsedSeconds);

    Please check my project for stopwatch kind of thing, this may come handy for you

    Check this code, most of requirement are solved here.

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