Comparing two dates using Joda time

Question

I want to compare two dates, however I'm running into trouble. 1 date is created from a java.util.date object and the other is manually crafted. The following code is an example:

Date ds = new Date();
DateTime d = new DateTime(ds);

DateTime e = new DateTime(2012,12,07, 0, 0);
System.out.println(d.isEqual(e));

However the test turns out false. I am guessing that it is because of the time. How can I check if these two dates are equal to each other (I mean the Year, month, date are identical)?

Answer 1

This is a static method which works for me.

public static boolean isSameDay(DateTime date1, DateTime date2){
    return date1.withTimeAtStartOfDay().isEqual(date2.withTimeAtStartOfDay());
}

Answer 2

You should use toLocalDate():

date1.toLocalDate().isEqual(date2.toLocalDate())

This will get rid of the Time part of the DateTime.

There is another approach, but it does not account for the case where the two dates have a different timezone, so it's less reliable:

date1.withTimeAtStartOfDay().isEqual(date2.withTimeAtStartOfDay())

Answer 3

return DateTimeComparator.getDateOnlyInstance().compare(first, second);

Via How to compare two Dates without the time portion?