In Things, smart dates are:

  • Someday/Maybe = Drag and drop task to (left pane).
  • Soft Date = Assign any of the following Tags:
    • THIS WEEK
    • NEXT WEEK
    • THIS MONTH
    • NEXT MONTH
  • Hard Date = Assign a When/Deadline date.
  • Deadline = (MM/DD) or (DD/MM) entered after project or task name.
  • Do Today = Assign a When/Deadline date of today OR drag and drop task to (left pane).