// Yesterday
$I->dontSeeDateWasYesterday(date('r', strtotime('+ 1 week')));
// Offset by one week
$I->seeDateIsInDays(date('r', strtotime('+3 days')), 3);
// Today's date plus three days
$I->seeDateIsInDays(date('r', strtotime('-25 days')), -25);
// Today's date less twenty-five days
$I->dontSeeDateIsInDays(date('r', strtotime('+10 days')), 12);
// Today's date plus ten days
$I->seeDateWasInDays(date('r', strtotime('-3 days')), 3);
// Today's date less three days
$I->seeDateWasInDays(date('r', strtotime('+25 days')), -25);
// Today's date plus twenty-five days
$I->dontSeeDateWasInDays(date('r', strtotime('-10 days')), 12);
// Today's date less ten days
$I->seeDateIsNextWeek(date('r', strtotime('+1 week')));
// Today's date plus one week
$I->dontSeeDateIsNextWeek(date('r', strtotime('-1 week')));
// Today's date less one week
$I->seeDateIsInWeeks(date('r', strtotime('+3 weeks')), 3);
// Today's date plus three weeks
$I->seeDateIsInWeeks(date('r', strtotime('+9 weeks')), 9);
// Today's date plus nine weeks
$I->seeDateIsInWeeks(date('r', strtotime('+25 weeks')), 25);
// Today's date plus twenty-five weeks
$I->seeDateIsInWeeks(date('r', strtotime('-25 weeks')), -25);
// Today's date less twenty-five weeks
$I->dontSeeDateIsInWeeks(date('r', strtotime('+10 weeks')), 12);
// Today's date plus ten weeks
$I->seeDateWasLastWeek(date('r', strtotime('-1 week')));
// Today's date less one week