How can I specify the latest time of day with DateTime

Question

I am using a System.DateTime object to allow a user to select a date range. The user is only able to select a date (not time) using a third party calendar so I

Answer 1

For example

DateTime.Now.Date.AddDays(1).AddSeconds(-1)

Or AddTicks/AddMilliseconds/AddMinutes... based on the precision you need.