public static long toSec(long dateTime)
{
if (dateTime < 10000101000000L || 99991231235959L < dateTime)
{
return(0); // dummy sec
}
int date = (int)(dateTime / 1000000);
int h = (int)((dateTime / 10000) % 100);
int m = (int)((dateTime / 100) % 100);
int s = (int)(dateTime % 100);
if (
date < 10000101 || 99991231 < date ||
h < 0 || 23 < h ||
m < 0 || 59 < m ||
s < 0 || 59 < s
)
{
return(0); // dummy sec
}
long sec = DateToDay.toDay(date);
sec *= 24;
sec += h;
sec *= 60;
sec += m;
sec *= 60;
sec += s;
return(sec);
}
public static long toDateTime(long sec)
{
if (sec < 0)
{
return(10000101000000L); // dummy date-time
}
long lDay = sec / 86400;
if (int.MaxValue < lDay)
{
return(10000101000000L); // dummy date-time
}
int h = (int)((sec / 3600) % 24);
int m = (int)((sec / 60) % 60);
int s = (int)(sec % 60);
long dateTime = DateToDay.toDate((int)lDay);
dateTime *= 100;
dateTime += h;
dateTime *= 100;
dateTime += m;
dateTime *= 100;
dateTime += s;
return(dateTime);
}