cal.set(1997, Calendar.APRIL, 30);
Date d = cal.getTime();
logln("The timezone is " + time_zone.getID());
if (time_zone.inDaylightTime(d) != true)
errln("FAIL: inDaylightTime returned false");
if (time_zone.useDaylightTime() != true)
errln("FAIL: useDaylightTime returned false");