How to compare dates in Value Object?

Question

Problem-Based Design

good afternoon. please tell me how to compare dates in Value Object, it is necessary to check that the start date is less than or equal to the end date. there is a range
public class DateTimeRange : ValueObject
{
public DateTime Start {get; private set}
public DateTime End {get; private set}
public DateTimeRange(DateTime start, DateTime end)
{
Start = start;
end = end;
}
}