Convert .NET Ticks to SQL Server DateTime

Question

I am saving a TimeSpan (from .NET) value in my db as BIGINT in SQL Server (saving the Ticks property). I want to know how to convert this BIG

Answer 1

I don't really know SQL Server, but today a colleague of mine had the same problem and I think I've found a solution like this:

CAST(([ticks] - 599266080000000000) / 10000000 / 24 / 60 / 60 AS datetime)

where 599266080000000000 is the ticks value for 01/01/1900 00:00:00.