iOS NSDate获取当前时间并格式化

 NSDateFormatter *formatter = [[NSDateFormatter alloc]init];

[formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];

 NSString *dateTime = [formatter stringFromDate:[NSDate date]];

NSLog(@"formatted time is: %@",dateTime);

　　

 NSTimeZone *zone = [NSTimeZone systemTimeZone];

NSInteger interval = [zone secondsFromGMTForDate:date];

 NSDate *localDate = [date dateByAddingTimeInterval:interval];

NSLog(@"localtime is:%@",localDate);