code: public final GoogleEntry createEntry(ZonedDateTime start, boolean fullDay) {
          GoogleEntry entry = new GoogleEntry();
          entry.setTitle("New Entry " + generateEntryConsecutive());
          entry.setInterval(new Interval(start.toLocalDate(), start.toLocalTime(), start.toLocalDate(), start.toLocalTime().plusHours(1)));
          entry.setFullDay(fullDay);
          entry.setAttendeesCanInviteOthers(true);
          entry.setAttendeesCanSeeOthers(true);
          return entry;
      }
docs: Creates a new google entry by using the given parameters, this assigns a
  default name by using a consecutive number. The entry is of course
  associated to this calendar, but it is not sent to google for storing.
  
  @param start
  The start date/time of the new entry.
  @param fullDay
  A flag indicating if the new entry is going to be full day.
  @return The new google entry created, this is not send to server side.
  @see #generateEntryConsecutive()