Thank you for your help, Andrew.
Now I have this strange error I won't get rid of.
I isolated it into a one-line-script to eliminate potential other issues,
but this line ALWAYs throws an error, regardless how I call it:
Here just 4 samples of my attempts:
1.) datetime tradeTime = (datetime) iTime(NULL, 0);
2.) datetime tradeTime = Now;
3.) datetime tradeTime;
4.) datetime tradeTime = D'1970.01.01 00:00:00';

What's going on here in my system ?
(And remember - those 4 are only 1-liners, they are NOT together in a script.