Prevent Daylight saving for "java.util.TimeZone"

I am trying to schedule a reminder email that has to be sent on first Tuesday of August and November. When I do that, the time of remainder email for November is changing from 10:00 AM to 11:00 AM (next run time). It fired correctly at 10:00 AM in August. This might be because of daylight saving. How should I prevent this from happening.

Code used for setting the Time Zone is:

java.util.TimeZone tz = TimeZone.getDefault();
tz = TimeZone.getTimeZone("US/Pacific");

When I inspect tz using debugger, the value of it is:

sun.util.calendar.ZoneInfo[id="US/Pacific",offset=-28800000,dstSavings=3600000,useDaylight=true,transitions=185,lastRule=java.util.SimpleTimeZone[id=US/Pacific,offset=-28800000,dstSavings=3600000,useDaylight=true,startYear=0,startMode=3,startMonth=2,startDay=8,startDayOfWeek=1,startTime=7200000,startTimeMode=0,endMode=3,endMonth=10,endDay=1,endDayOfWeek=1,endTime=7200000,endTimeMode=0]]

Code for creating CRON job is

org.quartz.TriggerBuilder builder = newTrigger().withSchedule(cronSchedule("0 0 10 ? AUG,NOV TUE#1").inTimeZone(tz));

I tried to find similar questions but for no luck. Should I use Calendar class? Can you suggest any alternative for this.