ios日期时间

//1.获取当前时间

 

-(NSString*)getCurrentTime {

    

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

    [formatter setDateFormat:@"yyyMMddHHmmss"];

    

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

    

    self.currentTime= dateTime;

    

    NSLog(@"当前时间是===%@",_currentTime);

    

    return _currentTime;

    

}

 

//2.获取当前时间戳

 

-(NSString*)getCurrentTimestamp{

    

    NSDate* dat = [NSDate dateWithTimeIntervalSinceNow:0];

    

    NSTimeInterval a=[dat timeIntervalSince1970];

    

    NSString*timeString = [NSString stringWithFormat:@"%0.f", a];//转为字符型

    

    return timeString;

    

}

 

//3.把时间戳转化为时间

 

-(NSString*)setTime:(NSString*)time{

    

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

    

    [formatter setDateStyle:NSDateFormatterMediumStyle];

    

    [formatter setTimeStyle:NSDateFormatterShortStyle];

    

    [formatter setDateFormat:@"yyyMMdd"];

    

    int timeval = [time intValue];

    

    NSDate*confromTimesp = [NSDate dateWithTimeIntervalSince1970:timeval];

    

    NSString*confromTimespStr = [formatter stringFromDate:confromTimesp];

    

    return confromTimespStr;

    

}

转载于:https://www.cnblogs.com/SensenCoder/p/5553062.html