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copied!<p>Please try this method:</p> <pre><code>-(NSString *)durationbetweendate:(NSString *)strdate1 date2:(NSString *)strdate2{ NSString *stringtime = strdate1; [NSTimeZone setDefaultTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"GMT"]]; NSDateFormatter *dateFormat1 = [[NSDateFormatter alloc] init]; [dateFormat1 setDateFormat: @"yyyy-MM-dd HH:mm:ss"]; NSDate *sourceDate1 = [dateFormat1 dateFromString:strdate1]; NSLog(@"%@",[NSDate date]); NSTimeInterval timeDiff ; if ([[NSDate date] laterDate:sourceDate1]) timeDiff = [[NSDate date] timeIntervalSinceDate:sourceDate1]; else timeDiff = [sourceDate1 timeIntervalSinceDate:[NSDate date]]; NSLog(@"second %f",timeDiff); float years = floor(timeDiff/(24*60*60*365)); if (years >0) { if (years == 1) return [NSString stringWithFormat:@"%d Year ago", (int)years]; else return [NSString stringWithFormat:@"%d Years ago", (int)years]; } else{ float months = floor(timeDiff/(24*60*60*30)); if (months>0) { if (months == 1) return [NSString stringWithFormat:@"%d Month ago", (int)months]; else return [NSString stringWithFormat:@"%d Months ago", (int)months]; } else{ float days = floor(timeDiff/(24*60*60)); if (days>0) { if (days == 1) return [NSString stringWithFormat:@"%d Day ago", (int)days]; else return [NSString stringWithFormat:@"%d Days ago", (int)days]; } else{ float hours = floor(timeDiff/(60*60)); if (hours>0) { float minutes = 0; minutes = floor(timeDiff/60) - (hours * 3600); float seconds = 0; seconds = round(timeDiff - (minutes * 60) - (hours * 3600)); if (hours==1) return [NSString stringWithFormat:@"%d Hour ago", (int)hours]; else return [NSString stringWithFormat:@"%d Hours ago", (int)hours]; } else { float minutes = floor(timeDiff/60); if (minutes >0) { if (minutes == 1) return [NSString stringWithFormat:@"%d Minute ago", (int)minutes]; else return [NSString stringWithFormat:@"%d Minutes ago", (int)minutes]; } else { float seconds = round(timeDiff - (minutes * 60)); if (seconds == 1) return [NSString stringWithFormat:@"%d Second ago", (int)seconds]; else return [NSString stringWithFormat:@"%d Seconds ago", (int)seconds]; } } } } } return stringtime; } </code></pre>

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