CDateTime     a, b (2000, 2, 2, 0, 0, 0);
istringstream is;
bool          st;

b = "2011-03-01 14:50:20";
a = "2011-12-30 21:08:14";
cout << a; // 2011-12-30 21:08:14
cout << a - b; // 26288274
a = a + 259200;
cout << a; // 2012-01-02 21:08:14
is . clear ();
is . str ( "2000-01-01 12:00:00" );
is >> a; // is . fail () = false
cout << a["year"]; // 2000
cout << a["month"]; // 1
cout << a["day"]; // 1
cout << a["hour"]; // 12
cout << a["min"]; // 0
cout << a["sec"]; // 0
st = a == b; // st = false
st = a != b; // st = true
st = a >= b; // st = false
st = a <= b; // st = true
st = a >  b; // st = false
st = a <  b; // st = true

a = "2000-12-31 00:00:00";
is . clear ();
is . str ( "2010-13-27 00:00:00" );
is >> a; // is . fail () = true
is . clear ();
is . str ( "2003-02-29 00:00:00" );
is >> a; // is . fail () = true
is . clear ();
is . str ( "2004-2-29 1:2:3" );
is >> a; // is . fail () = false
is . clear ();
is . str ( "1900-02-29 00:00:00" );
is >> a; // is . fail () = true
is . clear ();
is . str ( "2000-02-29 00:00:00" );
is >> a; // is . fail () = false