cdm/src/main/java/ucar/nc2/units/DateRange.java
public void extend(Date d) {
    if (d.before(getStart().getDate()))
      setStart( new DateType(false, d));
    if (getEnd().before(d))
      setEnd(new DateType(false, d));
  }
public void extend(Date d) {
    if (d.before(getStart().getDate()))
      setStart( new DateType(false, d));
    if (getEnd().before(d))
      setEnd(new DateType(false, d));
  }
Extend this date range by the given Date.

@param d given Date