11/13位时间戳转化为标准时间

// TimeConvert.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"
#include <time.h>
#include <string.h>

int IsLeap(unsigned short year)
{
  return ((year%4==0)&&(year%100!=0)||(year%400==0));
}

void MillSecond2LocalTime(long long time,long timezone)
{
  const int monthLengths[2][13]={
    {0,31,59,90,120,151,181,212,243,273,304,334,365 },
    {0,31,60,91,121,152,182,213,244,274,305,335,366 }
  };
  const int yearLengths[2]={365,366};
  int year(0),month(0),minMonth(0),maxMonth(0),days(0),clock(0),isLeap(0),day(0),hour(0),minute(0),second(0);
  time/=1000;
  time+=timezone*60*60;
  days=time/86400;//天数
  clock=time%86400;//小时数

  if(clock<0)
  {
    clock+=86400;
    days-=1;
  }

  if(days>=0)
  {
    year=days/366;
    days-=year*365+(year+1)/4-(year+69)/100+(year+369)/400;

    for (year=year+1970;;year++)
    {
      isLeap=IsLeap(year);
      if(days<yearLengths[isLeap])
      {
        break;
      }
      days-=yearLengths[isLeap];
    }
  }
  else
  {
    year=days/366;
    days-=year*365+(year-2)/4-(year-30)/100+(year-30)/400;
    for(year=year+1970-1;;year--)
    {
      isLeap=false;
      days+=yearLengths[isLeap];
      if (days>=0)
      {
        break;
      }
    }
  }

  minMonth=0;
  maxMonth=12;
  for (month=5;month<12&&month>0;month=(minMonth+maxMonth)/2)
  {
    if (days<monthLengths[isLeap][month])
    {
      maxMonth=month;
    }
    else if (days>=monthLengths[isLeap][month+1])
    {
      minMonth=month;
    }
    else
    {
      break;
    }
  }
  days-=monthLengths[isLeap][month];
  month++;
  day=days+1;

  hour=clock/3600;
  clock=clock%3600;
  minute=clock/60;
  second=clock%60;

  printf("%d-%02d-%02d %02d:%02d:%02d",year,month,day,hour,minute,second);
  
}
int main(int argc, char* argv[])
{
  char *str="402395506223";
  long long time;
  sscanf(str,"%I64d",&time);  
  MillSecond2LocalTime(time,8);
}

方法2 ：使用结构体 tm

void main()
  {     
        struct tm *newtime;
        char tmpbuf[128];
        time_t lt;
        lt=time( NULL );
        newtime=localtime(<);
        printf("%d 月 %d 日 %d 点 %d 分 %d 秒\n",newtime->tm_mon+1, newtime->tm_mday,newtime->tm_hour,newtime->tm_min,newtime->tm_sec);
  }