Get Seconds from TimeFormat

code :

-(NSString *)getSeconds:(NSString *)timeString {

    NSArray *time    = [timeString componentsSeparatedByString: @":"];

    NSString *hours = [time objectAtIndex: 0];

    NSString *mins  = [time objectAtIndex: 1];

    NSString *secs  = [time objectAtIndex: 2];

    int total              = (([hours intValue] * 3600)+ ([mins intValue] * 60) + [secs intValue]);

    NSString* totalSeconds = [NSString stringWithFormat:@"%d", total];

    return totalSeconds;

}

usage: 

NSLog(@"Seconds : %@", [self getSeconds: @"01:30:48"]);