----------------------------------------------------------------------------------------
COleDateTime now = COleDateTime::GetCurrentTime();
int a = now.GetMinute();
현재 시각이 1:27분이라면 27 정수를 리턴한다.

60초 체크하기
dwTimeStart = ::GetTickCount();    
dwTimeEnd   = dwTimeStart + 60000;  // 60초마다 체크

while (::GetTickCount() < dwTimeEnd)
{
    if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
    {
        ::TranslateMessage(&msg);
        ::DispatchMessage(&msg);
    }

    Sleep(1);
}
----------------------------------------------------------------------------------------
COleDateTime    now;
        now    = COleDateTime::GetTickCount();
        CString    strFileName;
        strFileName.Format(_T("HashLog_%04d%02d%02d_%02d%02d%02d.txt"), now.GetYear(), now.GetMonth(),
            now.GetDay(), now.GetHour(), now.GetMinute(), now.GetSecond());
----------------------------------------------------------------------------------------

이런 식으로 사용이 가능함
ATL/MFC에서 사용 주로 사용하는 시간 클래스
그런데 GetCurrentTIme쓰면 댄다는데 왜 VS2008에서 객체에서 ::했는데 안나오길래 GetTickCount() 사용했었는데...

그리고 두 COleDateTime 객체간의 차이를 구할 때는

----------------------------------------------------------------------------------------
COleDateTime ATime(2007, 4, 26, 17, 20, 30);
COleDateTime BTime(2007, 4, 26, 18, 20, 50);

COleDateTimeSpan C = BTime - ATime;

C.GetTotalDays() - 차이나는 총 날짜
C.GetTotalHours() - 차이나는 총 시간
C.GetTotalMinutes() - 차이나는 총 분
C.GetTotalSeconds() - 차이나는 총 초
----------------------------------------------------------------------------------------

객채를 생성할 때에는 아래와 같이 초기화하면서 사용 가능함
가장 일반적으로는 COleDateTime( nYear, nMonth, nDay, nHour, nMin, nSec ) 이게 많이 쓰이겠지..

----------------------------------------------------------------------------------------
COleDateTime( )   Constructs a COleDateTime object initialized to 0 (midnight, 30 December 1899).
COleDateTime( dateSrc )   Constructs a COleDateTime object from an existing COleDateTime object.
COleDateTime( varSrc )   Constructs a COleDateTime object. Attempts to convert a VARIANT structure or COleVariant object to a date/time (VT_DATE) value. If this conversion is successful, the converted value is copied into the new COleDateTime object. If it is not, the value of the COleDateTime object is set to 0 (midnight, 30 December 1899) and its status to invalid.
COleDateTime( dtSrc )   Constructs a COleDateTime object from a DATE value.
COleDateTime( timeSrc )   Constructs a COleDateTime object from a time_t value.
COleDateTime( systimeSrc )   Constructs a COleDateTime object from a SYSTEMTIME value.
COleDateTime( filetimeSrc )   Constructs a COleDateTime object from a FILETIME value. . Note that FILETIME uses Universal Coordinated Time (UTC), so if you pass a local time in the structure, your results will be incorrect. See File Times in the Platform SDK for more information.
COleDateTime( nYear, nMonth, nDay, nHour, nMin, nSec )   Constructs a COleDateTime object from the specified numerical values.
COleDateTime( wDosDate, wDosTime )   Constructs a COleDateTime object from the specified MS-DOS date and time values.
----------------------------------------------------------------------------------------

%a     Abbreviated weekday name

%A     Full weekday name

%b     Abbreviated month name

%B     Full month name

%c     Date and time representation appropriate for locale

%d     Day of month as decimal number (01 – 31)

%H     Hour in 24-hour format (00 – 23)

%I      Hour in 12-hour format (01 – 12)

%j      Day of year as decimal number (001 – 366)

%m    Month as decimal number (01 – 12)

%M   Minute as decimal number (00 – 59)

%p    Current locale's A.M./P.M. indicator for 12-hour clock

%S    Second as decimal number (00 – 59)

%U    Week of year as decimal number, with Sunday as first day of week (00 – 53)

%w   Weekday as decimal number (0 – 6; Sunday is 0)

%W   Week of year as decimal number, with Monday as first day of week (00 – 53)

%x    Date representation for current locale

%X    Time representation for current locale

%y    Year without century, as decimal number (00 – 99)

%Y   Year with century, as decimal number

%z, %Z  Either the time-zone name or time zone abbreviation, depending on registry settings; no characters if time zone is unknown

%%   Percent sign