Check if all items are the same in a List

Question

I have a List(Of DateTime) items. How can I check if all the items are the same with a LINQ query? At any given time there could be 1, 2, 20, 50 or 100 items in the list.

Answer 1

My variant:

var numUniques = 1;
var result = list.Distinct().Count() == numUniques;