使用范例
char *str="1320718222932";
long long time1;
sscanf(str,"%I64d",&time);
CString strTime=MillSecond2LocalTime(time,8);
/
int CTimeChangeDlg::IsLeap(unsigned short year)
{
return ((year%4==0)&&(year%100!=0)||(year%400==0));
}
CString CTimeChangeDlg::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
{
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
{
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;
CString t;
t.Format(TEXT("%d-%02d-%02d %02d:%02d:%02d"),year,month,day,hour,minute,second);
return t;
}
11位Unix 时间戳转换系统标准形式时间
/************************ 转换按钮 *****************
//输入UNIX字符串 csInput = “1244915859”;
//输出系统时间：csOutput = “-06-14 01：57：39”;
***************************************************/
void CUnixTimeDlg::OnBnClickedButton1()
{
// TODO: 在此添加控件通知处理程序代码
CString csInput,csOutput;
m_input.GetWindowTextA(csInput); //获取编辑框输入Unix字符串
int nUnixTime = atoi(csInput);
struct tm *newtime;
__time64_t long_time = nUnixTime;
newtime = _localtime64( &long_time ); // 值存在newtime 中
csOutput.Format("%04d-%02d-%02d %02d:%02d:%02d"
,newtime->tm_year + 1900 //年需要加1900
,newtime->tm_mon + 1 //月需要加1 (它是从0 到11)
,newtime->tm_mday
,newtime->tm_hour
,newtime->tm_min
,newtime->tm_sec
);
m_output.SetWindowTextA(csOutput); //编辑框输出系统时间字符串
}
系统标准形式时间转换Unix 时间戳
//unix时间戳为1900年以来的秒数
//获取系统当前时间的Unix时间戳
Cstring nowTime;
SYSTEMTIME sysTime;
GetLocalTime(&sysTime);
CTime m_tTime(sysTime);
time_t unixTime = m_tTime.GetTime();
nowTime.Format("%d",unixTime);//输出UNIX时间戳字符串
对于iOS它是从2001-01-01 00:00:00算起
需要做一个转换417594327.880849(实际时间)+978278400(从1970-01-01 00:00:00至2001-01-01 00:00:00)+ 8 * 3600 (UTC+8)= 1395901527.880849
