difference between 2 dates in c# code example

Example 1: c# calculate difference between two dates in days

(EndDate - StartDate).TotalDays //double
(EndDate.Date - StartDate.Date).Days //int

Example 2: c# how to compare 2 dates without time

if(dateTime1.Date == dateTime2.Date)
  // or 
if (dateTime1.Date.CompareTo(dateTime2.Date))
{
}