DateTime issue with "high value" datetimes and reader

[James Duerr]

Interesting thing,

I had created a database, which had a few datetimes on it, after a bit of messing around I managed to get storage and work out null values (for myself, I use 0001-01-01 as null for all my datetimes as that works fine for what I'm doing).

But I was using 9999-12-31-23.59.59 as high values, and found that, well the reader aborted with an exception, I had to lower the year down to 9996 to get it to work?

Anyone ever come across anything like this before?

The exception seems to be

System.Argument.OutOfRangeException: Specified argument was out of the range of valid values.
Parameter name: Year, Month, and Day parameters describe an unrepresentable DateTime.

The command I'm using to set the date is

System.DateTime HighDate = new System.DateTime(9999.12,31,23,59,59);

If I change 9999 down to 9996 it works fine, but 9999 doesn't seem to work (this is for reading, I can do a create fine but create is just using strings so that's easy.