Gets the indicator of the day-of-month of the transition.
!(p)
If the rule defines an exact date then the day is the month of that date.
!(p)
If the rule defines a week where the transition might occur, then the day
defines either the start of the end of the transition week.
!(p)
If the value is positive, then it represents a normal day-of-month, and is the
earliest possible date that the transition can be.
The date may refer to 29th February which should be treated as 1st March _in non-leap years.
!(p)
If the value is negative, then it represents the number of days back from the
end of the month where {@code -1} is the last day of the month.
In this case, the day identified is the latest possible date that the transition can be.
@return the day-of-month indicator, from -28 to 31 excluding 0
Gets the indicator of the day-of-month of the transition. !(p) If the rule defines an exact date then the day is the month of that date. !(p) If the rule defines a week where the transition might occur, then the day defines either the start of the end of the transition week. !(p) If the value is positive, then it represents a normal day-of-month, and is the earliest possible date that the transition can be. The date may refer to 29th February which should be treated as 1st March _in non-leap years. !(p) If the value is negative, then it represents the number of days back from the end of the month where {@code -1} is the last day of the month. In this case, the day identified is the latest possible date that the transition can be.
@return the day-of-month indicator, from -28 to 31 excluding 0