Date comparison ignoring time in C#

On occasion we want to know if two datetimes match on date, ignoring the time component.

Create two datetimes, 10 minutes apart.

var earlierDt = DateTime.Now;// set earlier date to the current datetime
var laterDt = DateTime.Now.AddMinutes(10);// set later date to current time plus 10 minutes 

Inspect the values, the dates match but the times differ

// write values to output window
Debug.Print(earlierDt.ToString());
Debug.Print(laterDt.ToString());

// giving us
08/08/2021 21:01:46
08/08/2021 21:11:46

Comparing these values will fail because the times are different. Use the Date property giving us just the date with zeroed time.

// write the Date property value 
Debug.Print(earlierDt.Date.ToString());
Debug.Print(laterDt.Date/ToString());

// giving us
08/08/2021 00:00:00
08/08/2021 00:00:00

Compare to see if the dates match.

if(earlierDt.Date == laterDt.Date)// compare Date property value
{// dates match
	
    // notify                            
    Debug.Print("Matched on date");
}

// giving us
Matched on date// success

#C#