How do you get the date/time range for “today” using the Joda date/time library in Java?

Question

Assuming this is how you get the current time in Joda time:

DateTime now = new DateTime();

How do you calculate values for the variables

Answer 1

As a Kotlin extension function it looks like this:

fun DateTime.isOnSameDay(timeOnDayToCheck: DateTime) =
  timeOnDayToCheck.toLocalDate().toInterval(this.zone).contains(this)

This does not contain times equaling the end of the day (start is included) so maybe add an "or"-case with interval.getEnd().isEqual(this)).