text: qdr:d (past day)
  qdr:w (past week)
  qdr:m (past month)
  qdr:y (past year)You can specify intermediate time periods by adding a number:
  qdr:h12 (past 12 hours)
  qdr:d3 (past 3 days)
  qdr:w2 (past 2 weeks)
  qdr:m6 (past 6 months)