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

A TimeSpan is not a date, and saving it as such may cause confusion in the future.

Is there a reason you can't simply save the ticks to an integer field and not change its meaning?