iOS标准时间与时间戳相互转换

最新推荐文章于 2024-04-02 13:49:15 发布

qq_18545835

最新推荐文章于 2024-04-02 13:49:15 发布

阅读量434

点赞数

分类专栏：时间戳的计算方法文章标签： nsstring

时间戳的计算方法专栏收录该内容

1 篇文章

订阅专栏

 
 
  
  一，转化的方法为  
 
 
 
 
  
      NSString *timeSp = [NSString stringWithFormat:@"%d", (long)[localeDate timeIntervalSince1970]];  
 
 
 
 
  
      NSLog(@"timeSp:%@",timeSp); //时间戳的值  
 
 
 
   
 
 
 
 
  
  二，把获取的时间转化为当前时间  
 
 
 
 
  
   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);  
 
 
 
   
 
 
 
 
  
  3.把时间戳转化为时间的方法  
 
 
 
 
  
      NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:1363948516];  
 
 
 
 
  
      NSLog(@"1363948516  = %@",confromTimesp);  
 
 
 
   
 
 
 
 
  
  //timer  
 
 
 
 
  
      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);  
 
 
 
       
 
 
 
 
  
      NSString *timeSp = [NSString stringWithFormat:@"%lld", (long long)[localeDate timeIntervalSince1970]];  
 
 
 
 
  
      NSLog(@"timeSp:%@",timeSp); //时间戳的值 1369189763711   1369218563 1369218614  
 
 
 
       
 
 
 
 
  
      NSDate *confromTimesp = [NSDate dateWithTimeIntervalSince1970:1369189763711/1000];  
 
 
 
 
  
      NSLog(@"1363948516  = %@",confromTimesp);  
 
 
 
       
 
 
 
 
  
      //实例化一个NSDateFormatter对象  
 
 
 
   
 
 
 
 
  
      //判断昨天 前几天等 判断今天凌晨时间戳  
 
 
 
 
  
      NSDateFormatter *dateFormatter1 = [[[NSDateFormatter alloc] init] autorelease];  
 
 
 
 
  
      [dateFormatter1 setDateFormat:@"yyyy-MM-dd 00:00:00"];  
 
 
 
 
  
      NSString *currentDateStr1 = [dateFormatter1 stringFromDate:[NSDate date]];  
 
 
 
 
  
      NSLog(@"凌晨时间:%@",currentDateStr1);  
 
 
 
 
  
      NSString *timeSp1 = [NSString stringWithFormat:@"%lld", (long long)[localeDate timeIntervalSince1970]];  
 
 
 
 
  
      NSLog(@"凌晨时间戳:%@",timeSp1);  
 
 
 
 
  
      //昨天凌晨时间戳  
 
 
 
 
  
      NSString *timeSp2 = [NSString stringWithFormat:@"%lld", (long long)[localeDate timeIntervalSince1970]-24*60*60];  
 
 
 
 
  
      NSLog(@"昨天凌晨时间戳:%@",timeSp2);