iOS 时间戳 与 时间相互转化

NSString *timeSp = [NSString stringWithFormat:@"%d", (long)[localeDate timeIntervalSince1970]];
NSLog(@"timeSp:%@",timeSp); //时间戳的值

NSDate *datenow = [NSDate date];//现在时间,你可以输出来看下是什么格式
NSTimeZone *zone = [NSTimeZone systemTimeZone];
NSInteger interval = [zone secondsFromGMTForDate:datenow];
NSDate *localeDate = [datenow  dateByAddingTimeInterval: interval];
NSLog(@"%@", localeDate);

NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:1363948516];
NSLog(@"1363948516  = %@",confromTimesp);