I have a question about Twitter4j's collection of tweets.

I'd like to get all tweets for a week for a keyword, but if I specify a date, I can only get tweets from 7:00 to 9:00, which are closer to the specified period.
example

query.setSince("2015-12-06");
query.setUntil("2015-12-08");

If so, the tweets from 7:00 to 9:00 on December 8th will be retrieved

How do I write the code to get a week's worth of tweets?
(I know the 15-minute limit, so I'm going to do it several times.)