today: 2014-12-16 (1418684400)
week_first_day: 2014-12-15 (1418598000)
next_week_first_day: 2014-12-22 (1419202800)
date: 2014-12-13 (1418425200)
This Week? NO
date: 2014-12-14 (1418511600)
This Week? NO
date: 2014-12-15 (1418598000)
This Week? YES
date: 2014-12-20 (1419030000)
This Week? YES
date: 2014-12-21 (1419116400)
This Week? YES
date: 2014-12-22 (1419202800)
This Week? NO
date: 2014-01-01 (1388530800)
This Week? NO
date: 2015-02-02 (1422831600)
This Week? NO